1
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Dover NP, Nishiuchi M, Sakaki H, Kondo K, Alkhimova MA, Faenov AY, Hata M, Iwata N, Kiriyama H, Koga JK, Miyahara T, Pikuz TA, Pirozhkov AS, Sagisaka A, Sentoku Y, Watanabe Y, Kando M, Kondo K. Effect of Small Focus on Electron Heating and Proton Acceleration in Ultrarelativistic Laser-Solid Interactions. Phys Rev Lett 2020; 124:084802. [PMID: 32167312 DOI: 10.1103/physrevlett.124.084802] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
Acceleration of particles from the interaction of ultraintense laser pulses up to 5×10^{21} W cm^{-2} with thin foils is investigated experimentally. The electron beam parameters varied with decreasing spot size, not just laser intensity, resulting in reduced temperatures and divergence. In particular, the temperature saturated due to insufficient acceleration length in the tightly focused spot. These dependencies affected the sheath-accelerated protons, which showed poorer spot-size scaling than widely used scaling laws. It is therefore shown that maximizing laser intensity by using very small foci has reducing returns for some applications.
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Affiliation(s)
- N P Dover
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - M Nishiuchi
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - H Sakaki
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - Ko Kondo
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - M A Alkhimova
- Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia
| | - A Ya Faenov
- Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia
- Open and Transdisciplinary Research Initiative, Osaka University, Suita, Osaka 565-0871, Japan
| | - M Hata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - N Iwata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - H Kiriyama
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - J K Koga
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - T Miyahara
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - T A Pikuz
- Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia
- Open and Transdisciplinary Research Initiative, Osaka University, Suita, Osaka 565-0871, Japan
| | - A S Pirozhkov
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - A Sagisaka
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - Y Sentoku
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Watanabe
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - M Kando
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - K Kondo
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
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2
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Magnusson J, Gonoskov A, Marklund M, Esirkepov TZ, Koga JK, Kondo K, Kando M, Bulanov SV, Korn G, Bulanov SS. Laser-Particle Collider for Multi-GeV Photon Production. Phys Rev Lett 2019; 122:254801. [PMID: 31347867 DOI: 10.1103/physrevlett.122.254801] [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] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Indexed: 06/10/2023]
Abstract
As an alternative to Compton backscattering and bremsstrahlung, the process of colliding high-energy electron beams with strong laser fields can more efficiently provide both a cleaner and brighter source of photons in the multi-GeV range for fundamental studies in nuclear and quark-gluon physics. In order to favor the emission of high-energy quanta and minimize their decay into electron-positron pairs, the fields must not only be sufficiently strong, but also well localized. We here examine these aspects and develop the concept of a laser-particle collider tailored for high-energy photon generation. We show that the use of multiple colliding laser pulses with 0.4 PW of total power is capable of converting more than 18% of multi-GeV electrons passing through the high-field region into photons, each of which carries more than half of the electron initial energy.
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Affiliation(s)
- J Magnusson
- Department of Physics, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
| | - A Gonoskov
- Department of Physics, University of Gothenburg, SE-41296 Gothenburg, Sweden
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia
- Lobachevsky State University of Nizhni Novgorod, Nizhny Novgorod, 603950, Russia
| | - M Marklund
- Department of Physics, University of Gothenburg, SE-41296 Gothenburg, Sweden
| | - T Zh Esirkepov
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - J K Koga
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - K Kondo
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - M Kando
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - S V Bulanov
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
- Institute of Physics ASCR, v.v.i. (FZU), ELI-Beamlines Project, 182 21 Prague, Czech Republic
- Prokhorov General Physics Institute RAS, Vavilov street 38, Moscow 119991, Russia
| | - G Korn
- Institute of Physics ASCR, v.v.i. (FZU), ELI-Beamlines Project, 182 21 Prague, Czech Republic
| | - S S Bulanov
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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3
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Jinno S, Tanaka H, Matsui R, Kanasaki M, Sakaki H, Kando M, Kondo K, Sugiyama A, Uesaka M, Kishimoto Y, Fukuda Y. Characterization of micron-size hydrogen clusters using Mie scattering. Opt Express 2017; 25:18774-18783. [PMID: 29041071 DOI: 10.1364/oe.25.018774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
Hydrogen clusters with diameters of a few micrometer range, composed of 108-10 hydrogen molecules, have been produced for the first time in an expansion of supercooled, high-pressure hydrogen gas into a vacuum through a conical nozzle connected to a cryogenic pulsed solenoid valve. The size distribution of the clusters has been evaluated by measuring the angular distribution of laser light scattered from the clusters. The data were analyzed based on the Mie scattering theory combined with the Tikhonov regularization method including the instrumental functions, the validity of which was assessed by performing a calibration study using a reference target consisting of standard micro-particles with two different sizes. The size distribution of the clusters was found discrete peaked at 0.33 ± 0.03, 0.65 ± 0.05, 0.81 ± 0.06, 1.40 ± 0.06 and 2.00 ± 0.13 µm in diameter. The highly reproducible and impurity-free nature of the micron-size hydrogen clusters can be a promising target for laser-driven multi-MeV proton sources with the currently available high power lasers.
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Walker PA, Alesini PD, Alexandrova AS, Anania MP, Andreev NE, Andriyash I, Aschikhin A, Assmann RW, Audet T, Bacci A, Barna IF, Beaton A, Beck A, Beluze A, Bernhard A, Bielawski S, Bisesto FG, Boedewadt J, Brandi F, Bringer O, Brinkmann R, Bründermann E, Büscher M, Bussmann M, Bussolino GC, Chance A, Chanteloup JC, Chen M, Chiadroni E, Cianchi A, Clarke J, Cole J, Couprie ME, Croia M, Cros B, Dale J, Dattoli G, Delerue N, Delferriere O, Delinikolas P, Dias J, Dorda U, Ertel K, Ferran Pousa A, Ferrario M, Filippi F, Fils J, Fiorito R, Fonseca RA, Galimberti M, Gallo A, Garzella D, Gastinel P, Giove D, Giribono A, Gizzi LA, Grüner FJ, Habib AF, Haefner LC, Heinemann T, Hidding B, Holzer BJ, Hooker SM, Hosokai T, Irman A, Jaroszynski DA, Jaster-Merz S, Joshi C, Kaluza MC, Kando M, Karger OS, Karsch S, Khazanov E, Khikhlukha D, Knetsch A, Kocon D, Koester P, Kononenko O, Korn G, Kostyukov I, Labate L, Lechner C, Leemans WP, Lehrach A, Li FY, Li X, Libov V, Lifschitz A, Litvinenko V, Lu W, Maier AR, Malka V, Manahan GG, Mangles SPD, Marchetti B, Marocchino A, Martinez de la Ossa A, Martins JL, Massimo F, Mathieu F, Maynard G, Mehrling TJ, Molodozhentsev AY, Mosnier A, Mostacci A, Mueller AS, Najmudin Z, Nghiem PAP, Nguyen F, Niknejadi P, Osterhoff J, Papadopoulos D, Patrizi B, Pattathil R, Petrillo V, Pocsai MA, Poder K, Pompili R, Pribyl L, Pugacheva D, Romeo S, Rossi AR, Roussel E, Sahai AA, Scherkl P, Schramm U, Schroeder CB, Schwindling J, Scifo J, Serafini L, Sheng ZM, Silva LO, Silva T, Simon C, Sinha U, Specka A, Streeter MJV, Svystun EN, Symes D, Szwaj C, Tauscher G, Thomas AGR, Thompson N, Toci G, Tomassini P, Vaccarezza C, Vannini M, Vieira JM, Villa F, Wahlström CG, Walczak R, Weikum MK, Welsch CP, Wiemann C, Wolfenden J, Xia G, Yabashi M, Yu L, Zhu J, Zigler A. Horizon 2020 EuPRAXIA design study. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/874/1/012029] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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5
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Dover NP, Nishiuchi M, Sakaki H, Alkhimova MA, Faenov AY, Fukuda Y, Kiriyama H, Kon A, Kondo K, Nishitani K, Ogura K, Pikuz TA, Pirozhkov AS, Sagisaka A, Kando M, Kondo K. Scintillator-based transverse proton beam profiler for laser-plasma ion sources. Rev Sci Instrum 2017; 88:073304. [PMID: 28764503 DOI: 10.1063/1.4994732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A high repetition rate scintillator-based transverse beam profile diagnostic for laser-plasma accelerated proton beams has been designed and commissioned. The proton beam profiler uses differential filtering to provide coarse energy resolution and a flexible design to allow optimisation for expected beam energy range and trade-off between spatial and energy resolution depending on the application. A plastic scintillator detector, imaged with a standard 12-bit scientific camera, allows data to be taken at a high repetition rate. An algorithm encompassing the scintillator non-linearity is described to estimate the proton spectrum at different spatial locations.
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Affiliation(s)
- N P Dover
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - M Nishiuchi
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - H Sakaki
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - M A Alkhimova
- National Research Nuclear University (MEPhI), Moscow 115409, Russia
| | - A Ya Faenov
- Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia
| | - Y Fukuda
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - H Kiriyama
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - A Kon
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - K Kondo
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - K Nishitani
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - K Ogura
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - T A Pikuz
- Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia
| | - A S Pirozhkov
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - A Sagisaka
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - M Kando
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
| | - K Kondo
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0215, Japan
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6
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Faenov AY, Colgan J, Hansen SB, Zhidkov A, Pikuz TA, Nishiuchi M, Pikuz SA, Skobelev IY, Abdallah J, Sakaki H, Sagisaka A, Pirozhkov AS, Ogura K, Fukuda Y, Kanasaki M, Hasegawa N, Nishikino M, Kando M, Watanabe Y, Kawachi T, Masuda S, Hosokai T, Kodama R, Kondo K. Nonlinear increase of X-ray intensities from thin foils irradiated with a 200 TW femtosecond laser. Sci Rep 2015; 5:13436. [PMID: 26330230 PMCID: PMC4557088 DOI: 10.1038/srep13436] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 02/08/2015] [Accepted: 07/27/2015] [Indexed: 11/09/2022] Open
Abstract
We report, for the first time, that the energy of femtosecond optical laser pulses, E, with relativistic intensities I > 10(21) W/cm(2) is efficiently converted to X-ray radiation, which is emitted by "hot" electron component in collision-less processes and heats the solid density plasma periphery. As shown by direct high-resolution spectroscopic measurements X-ray radiation from plasma periphery exhibits unusual non-linear growth ~E(4-5) of its power. The non-linear power growth occurs far earlier than the known regime when the radiation reaction dominates particle motion (RDR). Nevertheless, the radiation is shown to dominate the kinetics of the plasma periphery, changing in this regime (now labeled RDKR) the physical picture of the laser plasma interaction. Although in the experiments reported here we demonstrated by observation of KK hollow ions that X-ray intensities in the keV range exceeds ~10(17) W/cm(2), there is no theoretical limit of the radiation power. Therefore, such powerful X-ray sources can produce and probe exotic material states with high densities and multiple inner-shell electron excitations even for higher Z elements. Femtosecond laser-produced plasmas may thus provide unique ultra-bright X-ray sources, for future studies of matter in extreme conditions, material science studies, and radiography of biological systems.
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Affiliation(s)
- A Ya Faenov
- Institute for Academic Initiatives, Osaka University, Suita, Osaka, 565-0871, Japan.,Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia
| | - J Colgan
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - S B Hansen
- Sandia National Laboratories, Albuquerque, New Mexico 87123, USA
| | - A Zhidkov
- PPC and Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T A Pikuz
- Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia.,PPC and Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - M Nishiuchi
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S A Pikuz
- Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia.,National Research Nuclear University (MEPhI), Moscow 115409, Russia
| | - I Yu Skobelev
- Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia.,National Research Nuclear University (MEPhI), Moscow 115409, Russia
| | - J Abdallah
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - H Sakaki
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Sagisaka
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A S Pirozhkov
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Ogura
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Fukuda
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Kanasaki
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - N Hasegawa
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Nishikino
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Kando
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Watanabe
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Japan
| | - T Kawachi
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S Masuda
- PPC and Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Hosokai
- PPC and Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - R Kodama
- Institute for Academic Initiatives, Osaka University, Suita, Osaka, 565-0871, Japan.,PPC and Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Kondo
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
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7
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Bulanov SS, Esarey E, Schroeder CB, Bulanov SV, Esirkepov TZ, Kando M, Pegoraro F, Leemans WP. Enhancement of maximum attainable ion energy in the radiation pressure acceleration regime using a guiding structure. Phys Rev Lett 2015; 114:105003. [PMID: 25815939 DOI: 10.1103/physrevlett.114.105003] [Citation(s) in RCA: 2] [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: 10/30/2013] [Indexed: 06/04/2023]
Abstract
Radiation pressure acceleration is a highly efficient mechanism of laser-driven ion acceleration, with the laser energy almost totally transferrable to the ions in the relativistic regime. There is a fundamental limit on the maximum attainable ion energy, which is determined by the group velocity of the laser. In the case of tightly focused laser pulses, which are utilized to get the highest intensity, another factor limiting the maximum ion energy comes into play, the transverse expansion of the target. Transverse expansion makes the target transparent for radiation, thus reducing the effectiveness of acceleration. Utilization of an external guiding structure for the accelerating laser pulse may provide a way of compensating for the group velocity and transverse expansion effects.
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Affiliation(s)
- S S Bulanov
- University of California, Berkeley, California 94720, USA
| | - E Esarey
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C B Schroeder
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S V Bulanov
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
- Prokhorov Institute of General Physics, Russian Academy of Sciences, Moscow 119991, Russia
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region 141700, Russia
| | - T Zh Esirkepov
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
| | - M Kando
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
| | - F Pegoraro
- Physics Department, University of Pisa and Istituto Nazionale di Ottica, CNR, Pisa 56127, Italy
| | - W P Leemans
- University of California, Berkeley, California 94720, USA
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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8
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Nishiuchi M, Sakaki H, Maeda S, Sagisaka A, Pirozhkov AS, Pikuz T, Faenov A, Ogura K, Kanasaki M, Matsukawa K, Kusumoto T, Tao A, Fukami T, Esirkepov T, Koga J, Kiriyama H, Okada H, Shimomura T, Tanoue M, Nakai Y, Fukuda Y, Sakai S, Tamura J, Nishio K, Sako H, Kando M, Yamauchi T, Watanabe Y, Bulanov SV, Kondo K. Multi-charged heavy ion acceleration from the ultra-intense short pulse laser system interacting with the metal target. Rev Sci Instrum 2014; 85:02B904. [PMID: 24593609 DOI: 10.1063/1.4827111] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Experimental demonstration of multi-charged heavy ion acceleration from the interaction between the ultra-intense short pulse laser system and the metal target is presented. Al ions are accelerated up to 12 MeV/u (324 MeV total energy). To our knowledge, this is far the highest energy ever reported for the case of acceleration of the heavy ions produced by the <10 J laser energy of 200 TW class Ti:sapphire laser system. Adding to that, thanks to the extraordinary high intensity laser field of ∼10(21) W cm(-2), the accelerated ions are almost fully stripped, having high charge to mass ratio (Q/M).
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Affiliation(s)
- M Nishiuchi
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Sakaki
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S Maeda
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Sagisaka
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A S Pirozhkov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Pikuz
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Faenov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Ogura
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Kanasaki
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Matsukawa
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Kusumoto
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - A Tao
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Fukami
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Esirkepov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - J Koga
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Kiriyama
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - H Okada
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Shimomura
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - M Tanoue
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Nakai
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - Y Fukuda
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - S Sakai
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - J Tamura
- J-PARC Center, Tokai, Ibaragi, Japan
| | - K Nishio
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - H Sako
- Japan Atomic Energy Agency, Tokai, Ibaragi, Japan
| | - M Kando
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - T Yamauchi
- Graduate School of Maritime Science, Kobe University, 5-1-1 Fukaeminami-machi, Higashinada-ku, Kobe 658-0022, Japan
| | - Y Watanabe
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, Japan
| | - S V Bulanov
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
| | - K Kondo
- Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
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9
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Fukuda Y, Sakaki H, Kanasaki M, Yogo A, Jinno S, Tampo M, Faenov A, Pikuz T, Hayashi Y, Kando M, Pirozhkov A, Shimomura T, Kiriyama H, Kurashima S, Kamiya T, Oda K, Yamauchi T, Kondo K, Bulanov S. Identification of high energy ions using backscattered particles in laser-driven ion acceleration with cluster-gas targets. RADIAT MEAS 2013. [DOI: 10.1016/j.radmeas.2012.10.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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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10
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Pirozhkov AS, Kando M, Esirkepov TZ, Gallegos P, Ahmed H, Ragozin EN, Faenov AY, Pikuz TA, Kawachi T, Sagisaka A, Koga JK, Coury M, Green J, Foster P, Brenner C, Dromey B, Symes DR, Mori M, Kawase K, Kameshima T, Fukuda Y, Chen L, Daito I, Ogura K, Hayashi Y, Kotaki H, Kiriyama H, Okada H, Nishimori N, Imazono T, Kondo K, Kimura T, Tajima T, Daido H, Rajeev P, McKenna P, Borghesi M, Neely D, Kato Y, Bulanov SV. Soft-x-ray harmonic comb from relativistic electron spikes. Phys Rev Lett 2012; 108:135004. [PMID: 22540709 DOI: 10.1103/physrevlett.108.135004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2011] [Indexed: 05/31/2023]
Abstract
We demonstrate a new high-order harmonic generation mechanism reaching the "water window" spectral region in experiments with multiterawatt femtosecond lasers irradiating gas jets. A few hundred harmonic orders are resolved, giving μJ/sr pulses. Harmonics are collectively emitted by an oscillating electron spike formed at the joint of the boundaries of a cavity and bow wave created by a relativistically self-focusing laser in underdense plasma. The spike sharpness and stability are explained by catastrophe theory. The mechanism is corroborated by particle-in-cell simulations.
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Affiliation(s)
- A S Pirozhkov
- Advanced Beam Technology Division, JAEA, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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11
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Chen LM, Liu F, Wang WM, Kando M, Mao JY, Zhang L, Ma JL, Li YT, Bulanov SV, Tajima T, Kato Y, Sheng ZM, Wei ZY, Zhang J. Intense high-contrast femtosecond K-shell x-ray source from laser-driven Ar clusters. Phys Rev Lett 2010; 104:215004. [PMID: 20867110 DOI: 10.1103/physrevlett.104.215004] [Citation(s) in RCA: 5] [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: 01/23/2010] [Indexed: 05/29/2023]
Abstract
Bright Ar quasimonochromatic K-shell x ray with very little background has been generated using an Ar clustering gas jet target irradiated with a 30 fs ultrahigh-contrast laser, with a measured flux of 2.2×10(11) photons/J into 4π. This intense x-ray source critically depends on the laser contrast and intensity. The optimization of source output with interaction length is addressed. Simulations point to a nonlinear resonant mechanism of electron heating during the early stage of laser interaction, resulting in enhanced x-ray emission. The x-ray pulse duration is expected to be only 10 fs, opening the possibility for single-shot ultrafast keV x-ray imaging applications.
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Affiliation(s)
- L M Chen
- Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100080, China.
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12
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Bulanov SV, Echkina EY, Esirkepov TZ, Inovenkov IN, Kando M, Pegoraro F, Korn G. Unlimited ion acceleration by radiation pressure. Phys Rev Lett 2010; 104:135003. [PMID: 20481890 DOI: 10.1103/physrevlett.104.135003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Indexed: 05/29/2023]
Abstract
The energy of ions accelerated by an intense electromagnetic wave in the radiation pressure dominated regime can be greatly enhanced due to a transverse expansion of a thin target. The expansion decreases the number of accelerated ions in the irradiated region resulting in an increase in the ion energy and in the ion longitudinal velocity. In the relativistic limit, the ions become phase locked with respect to the electromagnetic wave resulting in unlimited ion energy gain.
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Affiliation(s)
- S V Bulanov
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
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13
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Kando M, Pirozhkov AS, Kawase K, Esirkepov TZ, Fukuda Y, Kiriyama H, Okada H, Daito I, Kameshima T, Hayashi Y, Kotaki H, Mori M, Koga JK, Daido H, Faenov AY, Pikuz T, Ma J, Chen LM, Ragozin EN, Kawachi T, Kato Y, Tajima T, Bulanov SV. Enhancement of photon number reflected by the relativistic flying mirror. Phys Rev Lett 2009; 103:235003. [PMID: 20366154 DOI: 10.1103/physrevlett.103.235003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Revised: 08/30/2009] [Indexed: 05/29/2023]
Abstract
Laser light reflection by a relativistically moving electron density modulation (flying mirror) in a wake wave generated in a plasma by a high intensity laser pulse is investigated experimentally. A counterpropagating laser pulse is reflected and upshifted in frequency with a multiplication factor of 37-66, corresponding to the extreme ultraviolet wavelength. The demonstrated flying mirror reflectivity (from 3 x 10(-6) to 2 x 10(-5), and from 1.3 x 10(-4) to 0.6 x 10(-3), for the photon number and pulse energy, respectively) is close to the theoretical estimate for the parameters of the experiment.
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Affiliation(s)
- M Kando
- Advanced Photon Research Center, JAEA, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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14
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Kotaki H, Daito I, Kando M, Hayashi Y, Kawase K, Kameshima T, Fukuda Y, Homma T, Ma J, Chen LM, Esirkepov TZ, Pirozhkov AS, Koga JK, Faenov A, Pikuz T, Kiriyama H, Okada H, Shimomura T, Nakai Y, Tanoue M, Sasao H, Wakai D, Matsuura H, Kondo S, Kanazawa S, Sugiyama A, Daido H, Bulanov SV. Electron optical injection with head-on and countercrossing colliding laser pulses. Phys Rev Lett 2009; 103:194803. [PMID: 20365929 DOI: 10.1103/physrevlett.103.194803] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Indexed: 05/29/2023]
Abstract
A high stability electron bunch is generated by laser wakefield acceleration with the help of a colliding laser pulse. The wakefield is generated by a laser pulse; the second laser pulse collides with the first pulse at 180 degrees and at 135 degrees realizing optical injection of an electron bunch. The electron bunch has high stability and high reproducibility compared with single pulse electron generation. In the case of 180 degrees collision, special measures have been taken to prevent damage. In the case of 135 degrees collision, since the second pulse is countercrossing, it cannot damage the laser system.
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Affiliation(s)
- H Kotaki
- Advanced Photon Research Center, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
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15
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Gasilov SV, Faenov AY, Pikuz TA, Fukuda Y, Kando M, Kawachi T, Skobelev IY, Daido H, Kato Y, Bulanov SV. Wide-field-of-view phase-contrast imaging of nanostructures with a comparatively large polychromatic soft x-ray plasma source. Opt Lett 2009; 34:3268-3270. [PMID: 19881563 DOI: 10.1364/ol.34.003268] [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] [Indexed: 05/28/2023]
Abstract
Polychromatic soft x-ray plasma sources were not previously considered to be among the sources suitable for the propagation based phase contrast imaging because of their comparatively large emission-zone size. In the current work a scheme based on the combination of soft x-ray emission of multicharged ions, generated by the interaction of femtosecond laser pulses with an ultrasonic jet of gas clusters, and an LiF crystal detector was used to obtain phase-enhanced high-resolution images of micro- and nanoscale objects in a wide field of view.
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Affiliation(s)
- S V Gasilov
- Joint Institute for High Temperatures of Russian Academy of Sciences, Izhorskaja Street 13/19, Moscow, Russia.
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16
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Fukuda Y, Faenov AY, Tampo M, Pikuz TA, Nakamura T, Kando M, Hayashi Y, Yogo A, Sakaki H, Kameshima T, Pirozhkov AS, Ogura K, Mori M, Esirkepov TZ, Koga J, Boldarev AS, Gasilov VA, Magunov AI, Yamauchi T, Kodama R, Bolton PR, Kato Y, Tajima T, Daido H, Bulanov SV. Energy increase in multi-MeV ion acceleration in the interaction of a short pulse laser with a cluster-gas target. Phys Rev Lett 2009; 103:165002. [PMID: 19905702 DOI: 10.1103/physrevlett.103.165002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Indexed: 05/28/2023]
Abstract
An approach for accelerating ions, with the use of a cluster-gas target and an ultrashort pulse laser of 150-mJ energy and 40-fs duration, is presented. Ions with energy 10-20 MeV per nucleon having a small divergence (full angle) of 3.4 degrees are generated in the forward direction, corresponding to approximately tenfold increase in the ion energies compared to previous experiments using solid targets. It is inferred from a particle-in-cell simulation that the high energy ions are generated at the rear side of the target due to the formation of a strong dipole vortex structure in subcritical density plasmas.
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Affiliation(s)
- Y Fukuda
- Kansai Photon Science Institute and Photo-Medical Research Center, JAEA, Kyoto, 615-0215 Japan
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17
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Esirkepov TZ, Bulanov SV, Kando M, Pirozhkov AS, Zhidkov AG. Boosted high-harmonics pulse from a double-sided relativistic mirror. Phys Rev Lett 2009; 103:025002. [PMID: 19659215 DOI: 10.1103/physrevlett.103.025002] [Citation(s) in RCA: 3] [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: 01/27/2009] [Indexed: 05/28/2023]
Abstract
An ultrabright high-power x- and gamma-radiation source is proposed. A high-density thin plasma slab, accelerating in the radiation pressure dominant regime by an ultraintense electromagnetic wave, reflects a counterpropagating relativistically strong electromagnetic wave, producing extremely time-compressed and intensified radiation. The reflected light contains relativistic harmonics generated at the plasma slab, all upshifted with the same factor as the fundamental mode of the incident light. The theory of an arbitrarily moving thin plasma slab reflectivity is presented.
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Affiliation(s)
- T Zh Esirkepov
- Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto 619-0215, Japan
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18
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Panchenko AV, Esirkepov TZ, Pirozhkov AS, Kando M, Kamenets FF, Bulanov SV. Interaction of electromagnetic waves with caustics in plasma flows. Phys Rev E Stat Nonlin Soft Matter Phys 2008; 78:056402. [PMID: 19113221 DOI: 10.1103/physreve.78.056402] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2008] [Indexed: 05/27/2023]
Abstract
An electromagnetic wave (EMW) interacting with the moving singularity of the charged particle flux undergoes the reflection and absorption as well as frequency change due to Doppler effect and nonlinearity. The singularity corresponding to a caustic in plasma flow with inhomogeneous velocity can arise during the breaking of the finite amplitude Langmuir waves due to nonlinear effects. A systematic analysis of the wave-breaking regimes and caustics formation is presented and the EMW reflection coefficients are calculated.
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Affiliation(s)
- A V Panchenko
- Moscow Institute of Physics and Technology, Institutskii pereulok 9, Dolgoprudnyi, Moscow Region, 141700 Russia
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19
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Kawase K, Kando M, Hayakawa T, Daito I, Kondo S, Homma T, Kameshima T, Kotaki H, Chen LM, Fukuda Y, Faenov A, Shizuma T, Fujiwara M, Bulanov SV, Kimura T, Tajima T. Sub-MeV tunably polarized X-ray production with laser Thomson backscattering. Rev Sci Instrum 2008; 79:053302. [PMID: 18513062 DOI: 10.1063/1.2931010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Reported in this article is the generation of unique polarized x-rays in the sub-MeV region by means of the Thomson backscattering of the Nd:YAG laser photon with a wavelength of 1064 nm on the 150 MeV electron from the microtron accelerator. The maximum energy of the x-ray photons is estimated to be about 400 keV. The total energy of the backscattered x-ray pulse is measured with an imaging plate and a LYSO scintillator. The angular divergence of the x-rays is also measured by using the imaging plate. We confirm that the x-ray beam is polarized according to the laser polarization direction with the Compton scattering method. In addition, we demonstrate the imaging of the object shielded by lead with the generated x-rays.
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Affiliation(s)
- K Kawase
- Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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20
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Chen LM, Kando M, Xu MH, Li YT, Koga J, Chen M, Xu H, Yuan XH, Dong QL, Sheng ZM, Bulanov SV, Kato Y, Zhang J, Tajima T. Study of x-ray emission enhancement via a high-contrast femtosecond laser interacting with a solid foil. Phys Rev Lett 2008; 100:045004. [PMID: 18352290 DOI: 10.1103/physrevlett.100.045004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2006] [Indexed: 05/26/2023]
Abstract
We observed the increase of the conversion efficiency from laser energy to Kalpha x-ray energy (eta(K)) produced by a 60 fs frequency doubled high-contrast laser pulse focused on a Cu foil, compared to the case of the fundamental laser pulse. eta(K) shows a strong dependence on the nonlinearly modified rising edge of the laser pulse. It reaches a maximum for a 100 fs negatively modified pulse. The hot electron efficient heating leads to the enhancement of eta(K). This demonstrates that high-contrast lasers are an effective tool for optimizing eta(K), via increasing the hot electrons by vacuum heating.
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Affiliation(s)
- L M Chen
- Advanced Photon Research Center, Kansai Photon Science Institute, JAEA, Kyoto 619-0215, Japan
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21
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Kando M, Fukuda Y, Pirozhkov AS, Ma J, Daito I, Chen LM, Esirkepov TZ, Ogura K, Homma T, Hayashi Y, Kotaki H, Sagisaka A, Mori M, Koga JK, Daido H, Bulanov SV, Kimura T, Kato Y, Tajima T. Demonstration of laser-frequency upshift by electron-density modulations in a plasma wakefield. Phys Rev Lett 2007; 99:135001. [PMID: 17930598 DOI: 10.1103/physrevlett.99.135001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2007] [Indexed: 05/25/2023]
Abstract
In a plasma wake wave generated by a high power laser, modulations of the electron density take the shape of paraboloidal dense shells, moving almost at the speed of light. A counterpropagating laser pulse is partially reflected from the shells, acting as relativistic flying mirrors, producing a time-compressed frequency-multiplied pulse due to the double Doppler effect. The counterpropagating laser pulse reflection from the plasma wake wave accompanied by its frequency multiplication (with a factor from 50 to 114) was detected in our experiment.
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Affiliation(s)
- M Kando
- Advanced Photon Research Center, JAEA, 8-1 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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22
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Hayashi Y, Fukumi A, Matsukado K, Mori M, Kotaki H, Kando M, Chen LM, Daito I, Kondo S, Kanazawa S, Yamazaki A, Ogura K, Nishiuchi M, Kado M, Sagisaka A, Nakamura S, Li Z, Orimo S, Homma T, Daido H. Estimation of photon dose generated by a short pulse high power laser. Radiat Prot Dosimetry 2006; 121:99-107. [PMID: 16410288 DOI: 10.1093/rpd/nci383] [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: 05/06/2023]
Abstract
The authors obtain a new equation to estimate the forward component of a photon dose generated through the interaction between a target and a short pulse high power laser. As the equation is quite simple, it is useful for calculating the photon dose. The equation shows that the photon dose is proportional to the electron temperature in the range>3 MeV and proportional to the square of the electron temperature in the range<3 MeV. The dose estimated with this method is roughly consistent with the result of Monte Carlo simulation. With some assumptions and corrections, it can reproduce experimental results obtained and the dose result calculated at other laboratories.
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Affiliation(s)
- Y Hayashi
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1 Umemidai, Kizu-cho, Souraku-gun, Kyoto 619-0215, Japan.
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23
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Kando M, Masuda S, Zhidkov A, Yamazaki A, Kotaki H, Kondo S, Homma T, Kanazawa S, Nakajima K, Hayashi Y, Mori M, Kiriyama H, Akahane Y, Inoue N, Ueda H, Nakai Y, Tsuji K, Yamamoto Y, Yamakawa K, Koga J, Hosokai T, Uesaka M, Tajima T. Electron acceleration by a nonlinear wakefield generated by ultrashort (23-fs) high-peak-power laser pulses in plasma. Phys Rev E Stat Nonlin Soft Matter Phys 2005; 71:015403. [PMID: 15697651 DOI: 10.1103/physreve.71.015403] [Citation(s) in RCA: 3] [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: 05/28/2004] [Indexed: 05/24/2023]
Abstract
We study experimentally the interaction of the shortest at present (23-fs) , relativistically intense (20-TW), tightly focused laser pulses with underdense plasma. MeV electrons constitute a two-temperature distribution due to different plasma wave-breaking processes at a plasma density of 10(20) cm(-3). These two groups of electrons are shown numerically to constitute bunches with very distinctive time durations.
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Affiliation(s)
- M Kando
- Advanced Photon Research Center, Kansai Research Establishment, Japan Atomic Energy Research Institute, 8-1 Umemidai, Kizu, Souraku, Kyoto 619-0215, Japan.
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24
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Nagashima K, Koga J, Kando M. Numerical study of laser wake field generated by two colliding laser beams. Phys Rev E Stat Nonlin Soft Matter Phys 2001; 64:066403. [PMID: 11736278 DOI: 10.1103/physreve.64.066403] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2001] [Indexed: 05/23/2023]
Abstract
The laser wake field generated by two colliding laser beams has been studied numerically. The wake field amplitude is enhanced by a counterpropagating long pulse laser, which has an appropriate frequency difference, and becomes an order of magnitude larger than that of the standard wake field. The field amplitude increases in proportion to the pumping laser intensities until it saturates under the wave breaking limit. The details of the enhanced wake field have been examined at the saturated state.
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Affiliation(s)
- K Nagashima
- Advanced Photon Research Center, Japan Atomic Energy Research Institute, Umemidai 8-1, Kizu-cyo, Souraku-gun, Kyoto-fu 619-0215, Japan
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25
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Hosokai T, Kando M, Dewa H, Kotaki H, Kondo S, Hasegawa N, Nakajima K, Horioka K. Optical guidance of terrawatt laser pulses by the implosion phase of a fast Z-pinch discharge in a gas-filled capillary. Opt Lett 2000; 25:10-12. [PMID: 18059765 DOI: 10.1364/ol.25.000010] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A new method of optical guidance by the implosion phase of a fast Z-pinch discharge in a gas-filled capillary is proposed. An imploding plasma column has a concave electron-density profile in the radial direction, just before a stagnation phase driven by a converging current sheet and a shock wave. The feasibility of optical guidance of a high-intensity (>1 x 10(17) W/cm(2)) Ti:sapphire laser pulse by use of this method over a distance of 2 cm, corresponding to 12.5 times the Rayleigh length, has been experimentally demonstrated. The guiding-channel formation process was directly probed with a He-Ne laser beam. The electron density in the fully ionized channel was estimated to be 2.0 x 10(17) cm(-3) on the axis and 7.0 x 10(17) cm(-3) on the peaks of the channel edge, with a diameter of 70 mum, as indicated by the experimental results, which were corroborated by a magnetohydrodynamics simulation.
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26
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Stoffels E, Stoffels WW, Vender D, Kando M, Kroesen GM. Negative ions in a radio-frequency oxygen plasma. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1995; 51:2425-2435. [PMID: 9962903 DOI: 10.1103/physreve.51.2425] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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27
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Okawa T, Azuma T, Kodera T, Kando M, Honda G. [Status of trichomonas vaginitis among 15000 women in Fukushima Prefecture]. Nihon Sanka Fujinka Gakkai Zasshi 1967; 19:93-6. [PMID: 6068517] [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: 01/18/2023]
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