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Lemos N, Sobral N, Duncan M, Mota J, dos Santos R, Martins C. A bibliometric analysis of physical activity interventions and cognition in children and adolescents. Sci Sports 2023. [DOI: 10.1016/j.scispo.2022.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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2
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Edwards MR, Munirov VR, Singh A, Fasano NM, Kur E, Lemos N, Mikhailova JM, Wurtele JS, Michel P. Holographic Plasma Lenses. Phys Rev Lett 2022; 128:065003. [PMID: 35213202 DOI: 10.1103/physrevlett.128.065003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 11/04/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
A hologram fully encodes a three-dimensional light field by imprinting the interference between the field and a reference beam in a recording medium. Here we show that two collinear pump lasers with different foci overlapped in a gas jet produce a holographic plasma lens capable of focusing or collimating a probe laser at intensities several orders-of-magnitude higher than the limits of a nonionized optic. We outline the theory of these diffractive plasma lenses and present simulations for two plasma mechanisms that allow their construction: spatially varying ionization and ponderomotively driven ion-density fluctuations. Damage-resistant plasma optics are necessary for manipulating high-intensity light, and divergence control of high-intensity pulses-provided by holographic plasma lenses-will be a critical component of high-power plasma-based lasers.
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Affiliation(s)
- M R Edwards
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - V R Munirov
- University of California at Berkeley, Berkeley, California 94720, USA
| | - A Singh
- University of California at Berkeley, Berkeley, California 94720, USA
| | - N M Fasano
- Princeton University, Princeton, New Jersey 08544, USA
| | - E Kur
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | | | - J S Wurtele
- University of California at Berkeley, Berkeley, California 94720, USA
| | - P Michel
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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3
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McGrattan M, Edwards DL, McDermott C, Lemos N. Laparoscopic Hysteroperineopexy for Pelvic Dysfunction after Proctocolectomy. J Minim Invasive Gynecol 2021. [DOI: 10.1016/j.jmig.2021.09.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Goyon C, Edwards MR, Chapman T, Divol L, Lemos N, Williams GJ, Mariscal DA, Turnbull D, Hansen AM, Michel P. Slow and Fast Light in Plasma Using Optical Wave Mixing. Phys Rev Lett 2021; 126:205001. [PMID: 34110194 DOI: 10.1103/physrevlett.126.205001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/10/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Slow and fast light, or large changes in the group velocity of light, have been observed in a range of optical media, but the fine optical control necessary to induce an observable effect has not been achieved in a plasma. Here, we describe how the ion-acoustic response in a fully ionized plasma can produce large and measurable changes in the group velocity of light. We show the first experimental demonstration of slow and fast light in a plasma, measuring group velocities between 0.12c and -0.34c.
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Affiliation(s)
- C Goyon
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M R Edwards
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - T Chapman
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - L Divol
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G J Williams
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D A Mariscal
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D Turnbull
- University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623-1299, USA
| | - A M Hansen
- University of Rochester Laboratory for Laser Energetics, Rochester, New York 14623-1299, USA
| | - P Michel
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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5
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Rusby DR, King PM, Pak A, Lemos N, Kerr S, Cochran G, Pagano I, Hannasch A, Quevedo H, Spinks M, Donovan M, Link A, Kemp A, Wilks SC, Williams GJ, Manuel MJE, Gavin Z, Haid A, Albert F, Aufderheide M, Chen H, Siders CW, Macphee A, Mackinnon A. Enhancements in laser-generated hot-electron production via focusing cone targets at short pulse and high contrast. Phys Rev E 2021; 103:053207. [PMID: 34134339 DOI: 10.1103/physreve.103.053207] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/31/2021] [Indexed: 11/07/2022]
Abstract
We report on the increase in the accelerated electron number and energy using compound parabolic concentrator (CPC) targets from a short-pulse (∼150 fs), high-intensity (>10^{18} W/cm^{2}), and high-contrast (∼10^{8}) laser-solid interaction. We report on experimental measurements using CPC targets where the hot-electron temperature is enhanced up to ∼9 times when compared to planar targets. The temperature measured from the CPC target is 〈T_{e}〉=4.4±1.3 MeV. Using hydrodynamic and particle in cell simulations, we identify the primary source of this temperature enhancement is the intensity increase caused by the CPC geometry that focuses the laser, reducing the focal spot and therefore increasing the intensity of the laser-solid interaction, which is also consistent with analytic expectations for the geometrical focusing.
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Affiliation(s)
- D R Rusby
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P M King
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA.,Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - A Pak
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Kerr
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G Cochran
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - I Pagano
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - A Hannasch
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - H Quevedo
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - M Spinks
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - M Donovan
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - A Link
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A Kemp
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S C Wilks
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G J Williams
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M J-E Manuel
- General Atomics, 3550 General Atomics Ave, San Diego, California 92103, USA
| | - Z Gavin
- General Atomics, 3550 General Atomics Ave, San Diego, California 92103, USA
| | - A Haid
- General Atomics, 3550 General Atomics Ave, San Diego, California 92103, USA
| | - F Albert
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M Aufderheide
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H Chen
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C W Siders
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A Macphee
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A Mackinnon
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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6
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Shaw JL, Romo-Gonzalez MA, Lemos N, King PM, Bruhaug G, Miller KG, Dorrer C, Kruschwitz B, Waxer L, Williams GJ, Ambat MV, McKie MM, Sinclair MD, Mori WB, Joshi C, Chen H, Palastro JP, Albert F, Froula DH. Microcoulomb (0.7 ± [Formula: see text] μC) laser plasma accelerator on OMEGA EP. Sci Rep 2021; 11:7498. [PMID: 33820945 PMCID: PMC8021563 DOI: 10.1038/s41598-021-86523-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/21/2021] [Indexed: 11/17/2022] Open
Abstract
Laser-plasma accelerators (LPAs) driven by picosecond-scale, kilojoule-class lasers can generate particle beams and x-ray sources that could be utilized in experiments driven by multi-kilojoule, high-energy-density science (HEDS) drivers such as the OMEGA laser at the Laboratory for Laser Energetics (LLE) or the National Ignition Facility at Lawrence Livermore National Laboratory. This paper reports on the development of the first LPA driven by a short-pulse, kilojoule-class laser (OMEGA EP) connected to a multi-kilojoule HEDS driver (OMEGA). In experiments, electron beams were produced with electron energies greater than 200 MeV, divergences as low as 32 mrad, charge greater than 700 nC, and conversion efficiencies from laser energy to electron energy up to 11%. The electron beam charge scales with both the normalized vector potential and plasma density. These electron beams show promise as a method to generate MeV-class radiography sources and improved-flux broadband x-ray sources at HEDS drivers.
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Affiliation(s)
- J. L. Shaw
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
| | - M. A. Romo-Gonzalez
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
- California State University Stanislaus, Turlock, CA 95382 USA
| | - N. Lemos
- Lawrence Livermore National Laboratory, Livermore, CA 94550 USA
| | - P. M. King
- Lawrence Livermore National Laboratory, Livermore, CA 94550 USA
- University of Texas at Austin, Austin, TX 78705 USA
| | - G. Bruhaug
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
| | - K. G. Miller
- University of California Los Angeles, Los Angeles, CA 90095 USA
| | - C. Dorrer
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
| | - B. Kruschwitz
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
| | - L. Waxer
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
| | - G. J. Williams
- Lawrence Livermore National Laboratory, Livermore, CA 94550 USA
| | - M. V. Ambat
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
| | - M. M. McKie
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
| | - M. D. Sinclair
- University of California Los Angeles, Los Angeles, CA 90095 USA
| | - W. B. Mori
- University of California Los Angeles, Los Angeles, CA 90095 USA
| | - C. Joshi
- University of California Los Angeles, Los Angeles, CA 90095 USA
| | - Hui Chen
- Lawrence Livermore National Laboratory, Livermore, CA 94550 USA
| | - J. P. Palastro
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
| | - F. Albert
- Lawrence Livermore National Laboratory, Livermore, CA 94550 USA
| | - D. H. Froula
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623 USA
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7
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Higginson A, Zhang S, Bailly-Grandvaux M, McGuffey C, Bhutwala K, Winjum BJ, Strehlow J, Edghill B, Dozières M, Tsung FS, Lee R, Andrews S, Spencer SJ, Lemos N, Albert F, King P, Wei MS, Mori WB, Manuel MJE, Beg FN. Electron acceleration at oblique angles via stimulated Raman scattering at laser irradiance >10^{16}Wcm^{-2}μm^{2}. Phys Rev E 2021; 103:033203. [PMID: 33862755 DOI: 10.1103/physreve.103.033203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/22/2021] [Indexed: 11/07/2022]
Abstract
The generation of hot, directional electrons via laser-driven stimulated Raman scattering (SRS) is a topic of great importance in inertial confinement fusion (ICF) schemes. Little recent research has been dedicated to this process at high laser intensity, in which back, side, and forward scatter simultaneously occur in high energy density plasmas, of relevance to, for example, shock ignition ICF. We present an experimental and particle-in-cell (PIC) investigation of hot electron production from SRS in the forward and near-forward directions from a single speckle laser of wavelength λ_{0}=1.053μm, peak laser intensities in the range I_{0}=0.2-1.0×10^{17}Wcm^{-2} and target electron densities between n_{e}=0.3-1.6%n_{c}, where n_{c} is the plasma critical density. As the intensity and density are increased, the hot electron spectrum changes from a sharp cutoff to an extended spectrum with a slope temperature T=34±1keV and maximum measured energy of 350 keV experimentally. Multidimensional PIC simulations indicate that the high energy electrons are primarily generated from SRS-driven electron plasma wave phase fronts with k vectors angled ∼50^{∘} with respect to the laser axis. These results are consistent with analytical arguments that the spatial gain is maximized at an angle which balances the tendency for the growth rate to be larger for larger scattered light wave angles until the kinetic damping of the plasma wave becomes important. The efficiency of generated high energy electrons drops significantly with a reduction in either laser intensity or target electron density, which is a result of the rapid drop in growth rate of Raman scattering at angles in the forward direction.
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Affiliation(s)
- A Higginson
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
| | - S Zhang
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
| | - M Bailly-Grandvaux
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
| | - C McGuffey
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
| | - K Bhutwala
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
| | - B J Winjum
- Office of Advanced Research Computing, University of California Los Angeles, Los Angeles, California 90095, USA
| | - J Strehlow
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
| | - B Edghill
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
| | - M Dozières
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
| | - F S Tsung
- Physics and Astronomy Department, University of California Los Angeles, Los Angeles, California 90095, USA
| | - R Lee
- Physics and Astronomy Department, University of California Los Angeles, Los Angeles, California 90095, USA
| | - S Andrews
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S J Spencer
- Centre for Fusion, Space, and Astrophysics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - N Lemos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - F Albert
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P King
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA.,Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - M S Wei
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA
| | - W B Mori
- Physics and Astronomy Department, University of California Los Angeles, Los Angeles, California 90095, USA
| | - M J-E Manuel
- General Atomics, Inertial Fusion Technologies, San Diego, California 92121, USA
| | - F N Beg
- Center for Energy Research, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0417, USA
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8
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Rosenberg MJ, Hernandez JE, Butler N, Filkins T, Bahr RE, Jungquist RK, Bedzyk M, Swadling G, Ross JS, Michel P, Lemos N, Eichmiller J, Sommers R, Nyholm P, Boni R, Marozas JA, Craxton RS, McKenty PW, Sharma A, Radha PB, Froula DH, Datte P, Gorman M, Moody JD, Heinmiller JM, Fornes J, Hillyard P, Regan SP. The Scattered Light Time-history Diagnostic suite at the National Ignition Facility. Rev Sci Instrum 2021; 92:033511. [PMID: 33820108 DOI: 10.1063/5.0040558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
The Scattered Light Time-history Diagnostic (SLTD) is being implemented at the National Ignition Facility (NIF) to greatly expand the angular coverage of absolute scattered-light measurements for direct- and indirect-drive inertial confinement fusion (ICF) experiments. The SLTD array will ultimately consist of 15 units mounted at a variety of polar and azimuthal angles on the NIF target chamber, complementing the existing NIF backscatter suite. Each SLTD unit collects and diffuses scattered light onto a set of three optical fibers, which transport the light to filtered photodiodes to measure scattered light in different wavelength bands: stimulated Brillouin scattering (350 nm-352 nm), stimulated Raman scattering (430 nm-760 nm), and ω/2 (695 nm-745 nm). SLTD measures scattered light with a time resolution of ∼1 ns and a signal-to-noise ratio of up to 500. Currently, six units are operational and recording data. Measurements of the angular dependence of scattered light will strongly constrain models of laser energy coupling in ICF experiments and allow for a more robust inference of the total laser energy coupled to implosions.
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Affiliation(s)
- M J Rosenberg
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - J E Hernandez
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Butler
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - T Filkins
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - R E Bahr
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - R K Jungquist
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - M Bedzyk
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - G Swadling
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J S Ross
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P Michel
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J Eichmiller
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Sommers
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - P Nyholm
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Boni
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - J A Marozas
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - R S Craxton
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - P W McKenty
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - A Sharma
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - P B Radha
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - D H Froula
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - P Datte
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - M Gorman
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J D Moody
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J M Heinmiller
- Nevada National Security Site, Livermore, California 94551, USA
| | - J Fornes
- Nevada National Security Site, Livermore, California 94551, USA
| | - P Hillyard
- Nevada National Security Site, Livermore, California 94551, USA
| | - S P Regan
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
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Edwards D, Zhao Z, Solnik M, Lemos N. Parametrial Endometriosis Part 3: Introducing a Nerve Sparing Technique to the Parametrectomy. J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Edwards D, Zhao Z, Solnik M, Lemos N. Technique and Initial Results of the Laparoscopic Nerve Sparing Ultralateral Resection (LaNSURe) of Parametrial Endometriosis. J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Edwards D, Zhao Z, Solnik M, Lemos N. Parametrial Endometriosis Part 1: A Correlation of Parametrial Anatomy and Disease Presentation. J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Kettle B, Gerstmayr E, Streeter MJV, Albert F, Baggott RA, Bourgeois N, Cole JM, Dann S, Falk K, Gallardo González I, Hussein AE, Lemos N, Lopes NC, Lundh O, Ma Y, Rose SJ, Spindloe C, Symes DR, Šmíd M, Thomas AGR, Watt R, Mangles SPD. Single-Shot Multi-keV X-Ray Absorption Spectroscopy Using an Ultrashort Laser-Wakefield Accelerator Source. Phys Rev Lett 2019; 123:254801. [PMID: 31922780 DOI: 10.1103/physrevlett.123.254801] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/16/2019] [Indexed: 06/10/2023]
Abstract
Single-shot absorption measurements have been performed using the multi-keV x rays generated by a laser-wakefield accelerator. A 200 TW laser was used to drive a laser-wakefield accelerator in a mode which produced broadband electron beams with a maximum energy above 1 GeV and a broad divergence of ≈15 mrad FWHM. Betatron oscillations of these electrons generated 1.2±0.2×10^{6} photons/eV in the 5 keV region, with a signal-to-noise ratio of approximately 300∶1. This was sufficient to allow high-resolution x-ray absorption near-edge structure measurements at the K edge of a titanium sample in a single shot. We demonstrate that this source is capable of single-shot, simultaneous measurements of both the electron and ion distributions in matter heated to eV temperatures by comparison with density functional theory simulations. The unique combination of a high-flux, large bandwidth, few femtosecond duration x-ray pulse synchronized to a high-power laser will enable key advances in the study of ultrafast energetic processes such as electron-ion equilibration.
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Affiliation(s)
- B Kettle
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, United Kingdom
| | - E Gerstmayr
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, United Kingdom
| | - M J V Streeter
- Physics Department, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - F Albert
- Lawrence Livermore National Laboratory (LLNL), Livermore, California 94550, USA
| | - R A Baggott
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, United Kingdom
| | - N Bourgeois
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom
| | - J M Cole
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, United Kingdom
| | - S Dann
- Physics Department, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - K Falk
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
- Institute of Physics of the ASCR, Na Slovance 1999/2, 182 21 Prague, Czech Republic
- Technische Universität Dresden, 01062, Dresden, Germany
| | | | - A E Hussein
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099, USA
| | - N Lemos
- Lawrence Livermore National Laboratory (LLNL), Livermore, California 94550, USA
| | - N C Lopes
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, U.L., Lisboa 1049-001, Portugal
| | - O Lundh
- Department of Physics, Lund University, P.O. Box 118, S-22100, Lund, Sweden
| | - Y Ma
- Physics Department, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - S J Rose
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, United Kingdom
| | - C Spindloe
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom
| | - D R Symes
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom
| | - M Šmíd
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - A G R Thomas
- Physics Department, Lancaster University, Lancaster LA1 4YB, United Kingdom
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099, USA
| | - R Watt
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, United Kingdom
| | - S P D Mangles
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, United Kingdom
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13
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Zakhari A, Mabrouk M, Raimondo D, Mastronardi M, Seracchioli R, Mattei B, Papillon-Smith J, Solnik MJ, Murji A, Lemos N. Keep Your Landmarks Close, and the Hypogastric Nerve Closer: An Approach to Nerve-Sparing Endometriosis Surgery. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Lemos N, Fernandes GL, Qiao L, Edwards DL, Ribeiro AM, Castello Girão MJB. Laparoscopic Catheter Implantation for Targeted Therapy Delivery in the Treatment of Pudendal Neuralgia and Other Intrapelvic Causes Of Neuropathic Pain. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Michel P, Rosenberg MJ, Seka W, Solodov AA, Short RW, Chapman T, Goyon C, Lemos N, Hohenberger M, Moody JD, Regan SP, Myatt JF. Theory and measurements of convective Raman side scatter in inertial confinement fusion experiments. Phys Rev E 2019; 99:033203. [PMID: 30999431 DOI: 10.1103/physreve.99.033203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Indexed: 06/09/2023]
Abstract
Raman side scatter, whereby scattered light is resonant while propagating perpendicularly to a density gradient in a plasma, was identified experimentally in planar-target experiments at the National Ignition Facility at intensities orders of magnitudes below the threshold for absolute instability. We have derived a new theoretical description of convective Raman side scatter below the absolute threshold, validated by numerical simulations. We show that inertial confinement fusion experiments at full ignition scale, i.e., with mm-scale spot sizes and density scale lengths, are prone to increased coupling losses from Raman side scatter as the instability can extend from the absolute regime near the quarter-critical density to the convective regime at lower electron densities.
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Affiliation(s)
- P Michel
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - M J Rosenberg
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York, NY 14623-1299, USA
| | - W Seka
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York, NY 14623-1299, USA
| | - A A Solodov
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York, NY 14623-1299, USA
| | - R W Short
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York, NY 14623-1299, USA
| | - T Chapman
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - C Goyon
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - M Hohenberger
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - J D Moody
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
| | - S P Regan
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York, NY 14623-1299, USA
| | - J F Myatt
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York, NY 14623-1299, USA
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16
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Hussein AE, Senabulya N, Ma Y, Streeter MJV, Kettle B, Dann SJD, Albert F, Bourgeois N, Cipiccia S, Cole JM, Finlay O, Gerstmayr E, González IG, Higginbotham A, Jaroszynski DA, Falk K, Krushelnick K, Lemos N, Lopes NC, Lumsdon C, Lundh O, Mangles SPD, Najmudin Z, Rajeev PP, Schlepütz CM, Shahzad M, Smid M, Spesyvtsev R, Symes DR, Vieux G, Willingale L, Wood JC, Shahani AJ, Thomas AGR. Laser-wakefield accelerators for high-resolution X-ray imaging of complex microstructures. Sci Rep 2019; 9:3249. [PMID: 30824838 PMCID: PMC6397215 DOI: 10.1038/s41598-019-39845-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/29/2019] [Indexed: 12/19/2022] Open
Abstract
Laser-wakefield accelerators (LWFAs) are high acceleration-gradient plasma-based particle accelerators capable of producing ultra-relativistic electron beams. Within the strong focusing fields of the wakefield, accelerated electrons undergo betatron oscillations, emitting a bright pulse of X-rays with a micrometer-scale source size that may be used for imaging applications. Non-destructive X-ray phase contrast imaging and tomography of heterogeneous materials can provide insight into their processing, structure, and performance. To demonstrate the imaging capability of X-rays from an LWFA we have examined an irregular eutectic in the aluminum-silicon (Al-Si) system. The lamellar spacing of the Al-Si eutectic microstructure is on the order of a few micrometers, thus requiring high spatial resolution. We present comparisons between the sharpness and spatial resolution in phase contrast images of this eutectic alloy obtained via X-ray phase contrast imaging at the Swiss Light Source (SLS) synchrotron and X-ray projection microscopy via an LWFA source. An upper bound on the resolving power of 2.7 ± 0.3 μm of the LWFA source in this experiment was measured. These results indicate that betatron X-rays from laser wakefield acceleration can provide an alternative to conventional synchrotron sources for high resolution imaging of eutectics and, more broadly, complex microstructures.
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Affiliation(s)
- A E Hussein
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI, 48109-2099, USA.
| | - N Senabulya
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109-2099, USA
| | - Y Ma
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI, 48109-2099, USA.,Physics Department, Lancaster University, Lancaster, LA1 4YB, UK.,The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK
| | - M J V Streeter
- Physics Department, Lancaster University, Lancaster, LA1 4YB, UK.,The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK.,The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, UK
| | - B Kettle
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, UK
| | - S J D Dann
- Physics Department, Lancaster University, Lancaster, LA1 4YB, UK.,The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK
| | - F Albert
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, Livermore, CA, 94550, USA
| | - N Bourgeois
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
| | - S Cipiccia
- Diamond Light Source, Harwell Science and Innovation Campus, Fermi Avenue, Didcot, OX11 0DE, UK
| | - J M Cole
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, UK
| | - O Finlay
- Physics Department, Lancaster University, Lancaster, LA1 4YB, UK.,The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK
| | - E Gerstmayr
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, UK
| | | | - A Higginbotham
- York Plasma Institute, Department of Physics, University of York, York, YO10 5DD, UK
| | - D A Jaroszynski
- The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK.,SUPA, Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - K Falk
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany.,Institute of Physics of the ASCR, 182 21, Prague, Czech Republic
| | - K Krushelnick
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI, 48109-2099, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, Livermore, CA, 94550, USA
| | - N C Lopes
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, UK.,GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, U.L., Lisboa, 1049-001, Portugal
| | - C Lumsdon
- York Plasma Institute, Department of Physics, University of York, York, YO10 5DD, UK
| | - O Lundh
- Department of Physics, Lund University, P.O. Box 118, S-22100, Lund, Sweden
| | - S P D Mangles
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, UK
| | - Z Najmudin
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, UK
| | - P P Rajeev
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
| | - C M Schlepütz
- Swiss Light Source, Paul Scherrer Institute, CH-5232, Villigen, Switzerland
| | - M Shahzad
- The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK.,SUPA, Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - M Smid
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328, Dresden, Germany.,ELI Beamlines, Institute of Physics of the ASCR, 182 21, Prague, Czech Republic
| | - R Spesyvtsev
- The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK.,SUPA, Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - D R Symes
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
| | - G Vieux
- The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK.,SUPA, Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
| | - L Willingale
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI, 48109-2099, USA
| | - J C Wood
- The John Adams Institute for Accelerator Science, Imperial College London, London, SW7 2AZ, UK
| | - A J Shahani
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, 48109-2099, USA
| | - A G R Thomas
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, MI, 48109-2099, USA.,Physics Department, Lancaster University, Lancaster, LA1 4YB, UK.,The Cockcroft Institute, Keckwick Lane, Daresbury, WA4 4AD, UK
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17
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King PM, Lemos N, Shaw JL, Milder AL, Marsh KA, Pak A, Hegelich BM, Michel P, Moody J, Joshi C, Albert F. X-ray analysis methods for sources from self-modulated laser wakefield acceleration driven by picosecond lasers. Rev Sci Instrum 2019; 90:033503. [PMID: 30927775 DOI: 10.1063/1.5082965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 02/20/2019] [Indexed: 06/09/2023]
Abstract
A versatile set of methods for analyzing x-ray energy spectra and photon flux has been developed for laser plasma accelerator experiments driven by picosecond lasers. Forward fit provides extrapolated broad energy spectrum measurements, while Ross pair and differential average transmission analysis provide directly measured data points using a particular diagnostic. Combining these methods allows the measurement of x-ray energy spectra with improved confidence. We apply the methods to three diagnostics (filter wheel, stacked image plate spectrometer, and step wedge), each sensitive to a different region of x-ray energies (<40 keV, 35-100 keV, and 60-1000 keV, respectively), to characterize the analysis methods using laser-driven bremsstrahlung x-rays. We then apply the methods to measure three x-ray mechanisms, betatron, inverse Compton scattering, and bremsstrahlung, driven by a laser plasma accelerator. The analysis results in the measurement of x-ray energy spectra ranging from 10 keV to 1 MeV with peak flux greater than 1010 photons/keV/Sr. The combined analysis methods provide a robust tool to accurately measure broadband x-ray sources (keV to MeV) driven by laser plasma acceleration with picosecond, kilojoule-class lasers.
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Affiliation(s)
- P M King
- NIF and Photon Sciences, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Lemos
- NIF and Photon Sciences, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J L Shaw
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - A L Milder
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - K A Marsh
- Department of Electrical Engineering, University of California Los Angeles, Los Angeles, California 90095, USA
| | - A Pak
- NIF and Photon Sciences, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - B M Hegelich
- Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - P Michel
- NIF and Photon Sciences, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J Moody
- NIF and Photon Sciences, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C Joshi
- Department of Electrical Engineering, University of California Los Angeles, Los Angeles, California 90095, USA
| | - F Albert
- NIF and Photon Sciences, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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18
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Cancelliere L, Li A, Marcu I, Fernandes G, Sermer C, Shaubi M, Balica A, Morozov V, Campian E, Solnik M, Girão M, Lemos N. Superior Gluteal Vessel Variation as an Intrapelvic Cause of Sciatica: Assessment of Anatomical Variants in Female Cadavers. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Li A, Cancelliere L, Marcu I, Fernandes G, Sermer C, Shaubi M, Balica A, Morozov V, Campian E, Solnik M, Girão M, Lemos N. The Relation of Sacral Nerve Roots to the Piriformis Muscle. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Marcu I, Balica A, Lemos N, Sridhar S, Gavard J, Campian E. Pelvic Neuroanatomy Knowledge Assessment and Improvement. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Cancelliere L, Li A, Marques R, Fernandes G, Sermer C, Kumar K, Afonso J, Girão M, Lemos N. Superior Gluteal Vein (SGV) Syndrome: An Intrapelvic Cause of Sciatica. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Mariscal D, Williams GJ, Chen H, Ayers S, Lemos N, Kerr S, Ma T. Calibration of proton dispersion for the NIF electron positron proton spectrometer (NEPPS) for short-pulse laser experiments on the NIF ARC. Rev Sci Instrum 2018; 89:10I145. [PMID: 30399771 DOI: 10.1063/1.5039388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/08/2018] [Indexed: 06/08/2023]
Abstract
Experiments using the Advanced Radiographic Capability (ARC) laser at the National Ignition Facility (NIF) aim to characterize short-pulse-driven proton beams for use as both probes and drivers for high-energy-density physics experiments. Measurements of ARC-driven proton beam characteristics, such as energy spectrum and conversion efficiency, rely on the NIF Electron Positron Proton Spectrometer (NEPPS). The NEPPS diagnostic is a version of an existing particle spectrometer which is used for detecting MeV electron and positron spectra via permanent magnetic field dispersion. These spectrometers have not yet been calibrated for protons and instead use an analytical calculation to estimate the dispersion. Small variations in the field uniformity can affect the proton dispersion due to the relatively small resolving power (E/dE) for this diagnostic. A broadband energy, laser-accelerated proton source was produced at the Titan laser to experimentally calibrate the proton dispersion. These experimental data were used to test the theoretical dispersion. Numerical simulations using measurements of the magnetic field variation within the diagnostic were used to obtain a realistic proton dispersion curve for the new NEPPS units. This procedure for obtaining each independent dispersion is applicable to all EPPS and NEPPS diagnostics, given the axial magnetic field profile.
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Affiliation(s)
- D Mariscal
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - G J Williams
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - H Chen
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Ayers
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S Kerr
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - T Ma
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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23
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Williams GJ, Tommasini R, Lemos N, Park J, Chen H. High-energy differential-filtering photon spectrometer for ultraintense laser-matter interactions. Rev Sci Instrum 2018; 89:10F116. [PMID: 30399768 DOI: 10.1063/1.5039383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/18/2018] [Indexed: 06/08/2023]
Abstract
Large quantities of ultrahigh-energy x-rays are produced by petawatt-class lasers; however, spectroscopy in this range of 0.1-1 MeV is difficult due to the long photon mean free path. A novel geometry step filter to measure the high-energy bremsstrahlung emission tail has been developed for use in high energy density, short-pulse laser-matter interaction experiments. The grid design of the filters allows for the independent determination of a local background, which reduces systematic errors in the reconstructed spectra. This spectrometer was used to measure x-ray spectra for various laser and target conditions at intensities near 1 × 1018 W/cm2 where single-exponential bremsstrahlung spectra were fit to the data and show an increasing photon temperature with pulse duration for a fixed laser intensity.
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Affiliation(s)
- G J Williams
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - R Tommasini
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J Park
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Hui Chen
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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24
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Lemos N, Cardoso L, Geada J, Figueira G, Albert F, Dias JM. Guiding of laser pulses in plasma waveguides created by linearly-polarized femtosecond laser pulses. Sci Rep 2018; 8:3165. [PMID: 29453363 PMCID: PMC5816635 DOI: 10.1038/s41598-018-21392-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/02/2018] [Indexed: 11/22/2022] Open
Abstract
We experimentally demonstrate that plasma waveguides produced with ultra-short laser pulses (sub-picosecond) in gas jets are capable of guiding high intensity laser pulses. This scheme has the unique ability of guiding a high-intensity laser pulse in a plasma waveguide created by the same laser system in the very simple and stable experimental setup. A hot plasma column was created by a femtosecond class laser that expands into an on-axis parabolic low density profile suitable to act as a waveguide for high intensity laser beams. We have successfully guided ~1015 W cm−2 laser pulses in a 8 mm long hydrogen plasma waveguide with a 35% guiding efficiency.
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Affiliation(s)
- N Lemos
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California, 94550, USA. .,GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.
| | - L Cardoso
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - J Geada
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - G Figueira
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - F Albert
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California, 94550, USA
| | - J M Dias
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
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25
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Lemos N, Papillon-Smith J, Moretti-Marques R, Fernandes G, Girao M, Solnik M. Refractory Pudendal Pain and Pelvic Floor Dysfunction Caused by Intrapelvic Nerve Entrapment: a Review of 50 Consecutive Cases. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Vieux G, Cipiccia S, Grant DW, Lemos N, Grant P, Ciocarlan C, Ersfeld B, Hur MS, Lepipas P, Manahan GG, Raj G, Reboredo Gil D, Subiel A, Welsh GH, Wiggins SM, Yoffe SR, Farmer JP, Aniculaesei C, Brunetti E, Yang X, Heathcote R, Nersisyan G, Lewis CLS, Pukhov A, Dias JM, Jaroszynski DA. An ultra-high gain and efficient amplifier based on Raman amplification in plasma. Sci Rep 2017; 7:2399. [PMID: 28546551 PMCID: PMC5445100 DOI: 10.1038/s41598-017-01783-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 03/31/2017] [Indexed: 11/10/2022] Open
Abstract
Raman amplification arising from the excitation of a density echelon in plasma could lead to amplifiers that significantly exceed current power limits of conventional laser media. Here we show that 1-100 J pump pulses can amplify picojoule seed pulses to nearly joule level. The extremely high gain also leads to significant amplification of backscattered radiation from "noise", arising from stochastic plasma fluctuations that competes with externally injected seed pulses, which are amplified to similar levels at the highest pump energies. The pump energy is scattered into the seed at an oblique angle with 14 J sr-1, and net gains of more than eight orders of magnitude. The maximum gain coefficient, of 180 cm-1, exceeds high-power solid-state amplifying media by orders of magnitude. The observation of a minimum of 640 J sr-1 directly backscattered from noise, corresponding to ≈10% of the pump energy in the observation solid angle, implies potential overall efficiencies greater than 10%.
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Affiliation(s)
- G Vieux
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom.
- Institute of Physics of the ASCR, ELI-Beamlines, Na Slovance 2, 182 21, Prague, Czech Republic.
| | - S Cipiccia
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
- Diamond Light Source, Harwell Science and Innovation Campus, Fermi Ave, Didcot, OX11 0DE, UK
| | - D W Grant
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - N Lemos
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Lawrence Livermore National laboratory, NIF and photon Sciences, 7000, East avenue, Livermore, CA, 94550, USA
| | - P Grant
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - C Ciocarlan
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
- IFIN-HH, National Institute for Physics and Nuclear Engineering, Bucharest, Romania
| | - B Ersfeld
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - M S Hur
- UNIST, Banyeon-ri 100. Ulju-gun, Ulsan, 689-798, South Korea
| | - P Lepipas
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - G G Manahan
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - G Raj
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
- Centre de Physique Théorique, École Polytechnique, 91128, Palaiseau cedex, France
| | - D Reboredo Gil
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - A Subiel
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
- Medical Radiation Science, National Physical Laboratory, Medical Radiation Science, Hampton Road, Teddington, Middlesex, TW11 0LW, UK
| | - G H Welsh
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - S M Wiggins
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - S R Yoffe
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - J P Farmer
- Theoretische Physik I, Heinrich Heine Universität, 40225, Düsseldorf, Germany
| | - C Aniculaesei
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
- Center for Relativistic Laser Science, Institute for Basic Science, Gwangju, 61005, Republic of Korea
| | - E Brunetti
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
| | - X Yang
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom
- Department of Physics, Capital Normal University, Key Lab of Terahertz Optoelectronics, Ministry of Education, and Beijing Advanced Innovation Center for Imaging Technology, Beijing, 100048, China
| | - R Heathcote
- Central Laser Facility, Rutherford Appleton Laboratory, Didcot, OX11 0QX, United Kingdom
| | - G Nersisyan
- Centre for Plasma Physics, School of Mathematics and Physics, Queens University Belfast, Belfast, BT7 1NN, United Kingdom
| | - C L S Lewis
- Centre for Plasma Physics, School of Mathematics and Physics, Queens University Belfast, Belfast, BT7 1NN, United Kingdom
| | - A Pukhov
- Theoretische Physik I, Heinrich Heine Universität, 40225, Düsseldorf, Germany
| | - J M Dias
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - D A Jaroszynski
- Department of Physics, Scottish Universities Physics Alliance and University of Strathclyde, Department of Physics, Glasgow, G4 0NG, United Kingdom.
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Albert F, Lemos N, Shaw JL, Pollock BB, Goyon C, Schumaker W, Saunders AM, Marsh KA, Pak A, Ralph JE, Martins JL, Amorim LD, Falcone RW, Glenzer SH, Moody JD, Joshi C. Observation of Betatron X-Ray Radiation in a Self-Modulated Laser Wakefield Accelerator Driven with Picosecond Laser Pulses. Phys Rev Lett 2017; 118:134801. [PMID: 28409970 DOI: 10.1103/physrevlett.118.134801] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Indexed: 06/07/2023]
Abstract
We investigate a new regime for betatron x-ray emission that utilizes kilojoule-class picosecond lasers to drive wakes in plasmas. When such laser pulses with intensities of ∼5×10^{18} W/cm^{2} are focused into plasmas with electron densities of ∼1×10^{19} cm^{-3}, they undergo self-modulation and channeling, which accelerates electrons up to 200 MeV energies and causes those electrons to emit x rays. The measured x-ray spectra are fit with a synchrotron spectrum with a critical energy of 10-20 keV, and 2D particle-in-cell simulations were used to model the acceleration and radiation of the electrons in our experimental conditions.
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Affiliation(s)
- F Albert
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California 94550, USA
| | - N Lemos
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California 94550, USA
- Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA
| | - J L Shaw
- Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA
| | - B B Pollock
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California 94550, USA
| | - C Goyon
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California 94550, USA
| | - W Schumaker
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - A M Saunders
- Lawrence Berkeley National Laboratory and University of California Berkeley, Berkeley, California 94720, USA
| | - K A Marsh
- Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA
| | - A Pak
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California 94550, USA
| | - J E Ralph
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California 94550, USA
| | - J L Martins
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - L D Amorim
- Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - R W Falcone
- Lawrence Berkeley National Laboratory and University of California Berkeley, Berkeley, California 94720, USA
| | - S H Glenzer
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - J D Moody
- Lawrence Livermore National Laboratory, NIF and Photon Sciences, 7000 East Avenue, Livermore, California 94550, USA
| | - C Joshi
- Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA
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Shaw JL, Lemos N, Amorim LD, Vafaei-Najafabadi N, Marsh KA, Tsung FS, Mori WB, Joshi C. Role of Direct Laser Acceleration of Electrons in a Laser Wakefield Accelerator with Ionization Injection. Phys Rev Lett 2017; 118:064801. [PMID: 28234524 DOI: 10.1103/physrevlett.118.064801] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Indexed: 06/06/2023]
Abstract
We show the first experimental demonstration that electrons being accelerated in a laser wakefield accelerator operating in the forced or blowout regimes gain significant energy from both the direct laser acceleration (DLA) and the laser wakefield acceleration mechanisms. Supporting full-scale 3D particle-in-cell simulations elucidate the role of the DLA of electrons in a laser wakefield accelerator when ionization injection of electrons is employed. An explanation is given for how electrons can maintain the DLA resonance condition in a laser wakefield accelerator despite the evolving properties of both the drive laser and the electrons. The produced electron beams exhibit characteristic features that are indicative of DLA as an additional acceleration mechanism.
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Affiliation(s)
- J L Shaw
- University of California Los Angeles Department of Electrical Engineering, Los Angeles, California 90095, USA
| | - N Lemos
- University of California Los Angeles Department of Electrical Engineering, Los Angeles, California 90095, USA
| | - L D Amorim
- University of California Los Angeles Department of Physics and Astronomy, Los Angeles, California 90095, USA
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - N Vafaei-Najafabadi
- University of California Los Angeles Department of Electrical Engineering, Los Angeles, California 90095, USA
| | - K A Marsh
- University of California Los Angeles Department of Electrical Engineering, Los Angeles, California 90095, USA
| | - F S Tsung
- University of California Los Angeles Department of Physics and Astronomy, Los Angeles, California 90095, USA
| | - W B Mori
- University of California Los Angeles Department of Electrical Engineering, Los Angeles, California 90095, USA
- University of California Los Angeles Department of Physics and Astronomy, Los Angeles, California 90095, USA
| | - C Joshi
- University of California Los Angeles Department of Electrical Engineering, Los Angeles, California 90095, USA
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29
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Lemos N, Marques RM, Sparapani FV, Ploger-Schor C, Girão MJBC. Laparoscopic Approach to Intrapelvic Nerve Entrapments. J Minim Invasive Gynecol 2015; 22:S213. [DOI: 10.1016/j.jmig.2015.08.760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pollock BB, Tsung FS, Albert F, Shaw JL, Clayton CE, Davidson A, Lemos N, Marsh KA, Pak A, Ralph JE, Mori WB, Joshi C. Formation of Ultrarelativistic Electron Rings from a Laser-Wakefield Accelerator. Phys Rev Lett 2015; 115:055004. [PMID: 26274427 DOI: 10.1103/physrevlett.115.055004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Indexed: 06/04/2023]
Abstract
Ultrarelativistic-energy electron ring structures have been observed from laser-wakefield acceleration experiments in the blowout regime. These electron rings had 170-280 MeV energies with 5%-25% energy spread and ∼10 pC of charge and were observed over a range of plasma densities and compositions. Three-dimensional particle-in-cell simulations show that laser intensity enhancement in the wake leads to sheath splitting and the formation of a hollow toroidal pocket in the electron density around the wake behind the first wake period. If the laser propagates over a distance greater than the ideal dephasing length, some of the dephasing electrons in the second period can become trapped within the pocket and form an ultrarelativistic electron ring that propagates in free space over a meter-scale distance upon exiting the plasma. Such a structure acts as a relativistic potential well, which has applications for accelerating positively charged particles such as positrons.
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Affiliation(s)
- B B Pollock
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
| | - F S Tsung
- University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA
| | - F Albert
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
| | - J L Shaw
- University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA
| | - C E Clayton
- University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA
| | - A Davidson
- University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA
| | - N Lemos
- University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA
| | - K A Marsh
- University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA
| | - A Pak
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
| | - J E Ralph
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
| | - W B Mori
- University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA
| | - C Joshi
- University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA
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31
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Lemos N, Kamergorodsky G, Liu P, Schor E, Girão M. Laparoscopic Decompression of Pelvic Nerves. J Minim Invasive Gynecol 2011. [DOI: 10.1016/j.jmig.2011.08.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Sardinha AB, Abreu E, Dias JM, Douillet D, Figueira G, Imran T, Kozlova M, Lemos N, Lopes NC, Miranda J, Rey G, Zeitoun P, Fajardo M, Dumitras D. Generation of tunable EUV radiation. ACTA ACUST UNITED AC 2010. [DOI: 10.1063/1.3426086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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33
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Sun JH, Gallacher JG, Brussaard GJH, Lemos N, Issac R, Huang ZX, Dias JM, Jaroszynski DA. Electro-optic measurement of terahertz pulse energy distribution. Rev Sci Instrum 2009; 80:113103. [PMID: 19947713 DOI: 10.1063/1.3245342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
An accurate and direct measurement of the energy distribution of a low repetition rate terahertz electromagnetic pulse is challenging because of the lack of sensitive detectors in this spectral range. In this paper, we show how the total energy and energy density distribution of a terahertz electromagnetic pulse can be determined by directly measuring the absolute electric field amplitude and beam energy density distribution using electro-optic detection. This method has potential use as a routine method of measuring the energy density of terahertz pulses that could be applied to evaluating future high power terahertz sources, terahertz imaging, and spatially and temporarily resolved pump-probe experiments.
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Affiliation(s)
- J H Sun
- National Electromagnetic Scattering Laboratory, Beijing 100854, People's Republic of China.
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Lemos N, Lopes N, Dias JM, Viola F. Design and characterization of supersonic nozzles for wide focus laser-plasma interactions. Rev Sci Instrum 2009; 80:103301. [PMID: 19895054 DOI: 10.1063/1.3233895] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this work we optimize the contour of supersonic nozzles to produce long and stable gas jets suitable to be used in loose focus laser-plasma applications. The nozzle design method takes into account the inclusion of a boundary layer that increases the length of the usable gas jet. Two 8 mm supersonic nozzles were characterized, one with a Mach number of 3 and another with a Mach number of 6, using a Mach-Zehnder interferometer performed with a He:Ne 4 cm expanded laser beam. The experimental results confirm that the inclusion of the boundary layer produces an 8 mm constant longitudinal density profile for the nozzle with a Mach number of 6 (NM6) and a 4.5 mm constant longitudinal density profile for the nozzle with a Mach number of 3 (NM3).
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Affiliation(s)
- N Lemos
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Tecnico, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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Arbo E, Vetori D, Jimenez M, Freitas F, Lemos N, Cunha-Filho J. Serum anti-mullerian hormone levels and follicular cohort characteristics after pituitary suppression in the late luteal phase with oral contraceptive pills. Hum Reprod 2007; 22:3192-6. [DOI: 10.1093/humrep/dem258] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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36
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Abstract
Plasmacytoma is an unusual disease of plasma cells, its presentation in the urethra is rare. We report the sixth known case of primary urethral plasmacytoma, which was treated by surgical excision, without recurrence for 3 years of follow-up.
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Affiliation(s)
- N Lemos
- Department of Surgery, Universitary Hospital of Santa Maria, RS, Brazil
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38
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Lemos N, Wainer S, Gama EM. [Designing a mental health program using the social communication media]. J Bras Psiquiatr 1970; 19:231-4. [PMID: 5526368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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