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Feng J, Wang W, Fu C, Chen L, Tan J, Li Y, Wang J, Li Y, Zhang G, Ma Y, Zhang J. Femtosecond Pumping of Nuclear Isomeric States by the Coulomb Collision of Ions with Quivering Electrons. PHYSICAL REVIEW LETTERS 2022; 128:052501. [PMID: 35179938 DOI: 10.1103/physrevlett.128.052501] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 11/06/2021] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
Efficient production of nuclear isomers is critical for pioneering applications, like nuclear clocks, nuclear batteries, clean nuclear energy, and nuclear γ-ray lasers. However, due to small production cross sections and quick decays, it is extremely difficult to acquire a significant amount of isomers with short lifetimes via traditional accelerators or reactors because of low beam intensity. Here, for the first time, we experimentally present femtosecond pumping of nuclear isomeric states by the Coulomb excitation of ions with the quivering electrons induced by laser fields. Nuclei populated on the third excited state of ^{83}Kr are generated with a peak efficiency of 2.34×10^{15} particles/s from a tabletop hundred-TW laser system. It can be explained by the Coulomb excitation of ions with the quivering electrons during the interaction between laser pulses and clusters at nearly solid densities. This efficient and universal production method can be widely used for pumping isotopes with excited state lifetimes down to picoseconds, and could be a benefit for fields like nuclear transition mechanisms and nuclear γ-ray lasers.
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Affiliation(s)
- Jie Feng
- Key Laboratory of Laser Plasma (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wenzhao Wang
- Key Laboratory of Laser Plasma (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Changbo Fu
- Key Laboratory of Nuclear Physics and Ion-beam Application (MoE), Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - Liming Chen
- Key Laboratory of Laser Plasma (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
- IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junhao Tan
- Key Laboratory of Laser Plasma (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yaojun Li
- Key Laboratory of Laser Plasma (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jinguang Wang
- Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yifei Li
- Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Guoqiang Zhang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Yugang Ma
- Key Laboratory of Nuclear Physics and Ion-beam Application (MoE), Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - Jie Zhang
- Key Laboratory of Laser Plasma (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
- IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
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2
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Song J, Won J, Bang W. Time-resolved Rayleigh scattering measurements of methane clusters for laser-cluster fusion experiments. PLoS One 2021; 16:e0261574. [PMID: 34919591 PMCID: PMC8682908 DOI: 10.1371/journal.pone.0261574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/05/2021] [Indexed: 12/04/2022] Open
Abstract
We present a time-resolved analysis of Rayleigh scattering measurements to determine the average size of methane clusters and find the optimum timing for laser-cluster fusion experiments. We measure Rayleigh scattering and determine the average size of methane clusters varying the backing pressure (P0) from 11 bar to 69 bar. Regarding the onset of clustering, we estimate that the average size of methane clusters at the onset of clustering is Nc0≅20 at 11 bar. According to our measurements, the average cluster radius r follows the power law of r∝P01.86. Our ion time-of-flight measurements indicate that we have produced energetic deuterium ions with kT = 52±2 keV after laser-cluster interaction using CD4 gas at 50 bar. We find that this ion temperature agrees with the predicted temperature from CD4 clusters at 50 bar with r = 14 nm assuming the Coulomb explosion model.
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Affiliation(s)
- J. Song
- Department of Physics and Photon Science, GIST, Gwangju, South Korea
- Center for Relativistic Laser Science, Institute for Basic Science, Gwangju, South Korea
| | - J. Won
- Department of Physics and Photon Science, GIST, Gwangju, South Korea
- Center for Relativistic Laser Science, Institute for Basic Science, Gwangju, South Korea
| | - W. Bang
- Department of Physics and Photon Science, GIST, Gwangju, South Korea
- Center for Relativistic Laser Science, Institute for Basic Science, Gwangju, South Korea
- * E-mail:
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3
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Mao H, Weichman K, Gong Z, Ditmire T, Quevedo H, Arefiev A. Emission of electromagnetic waves as a stopping mechanism for nonlinear collisionless ionization waves in a high-β regime. Phys Rev E 2021; 103:023209. [PMID: 33735976 DOI: 10.1103/physreve.103.023209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 01/22/2021] [Indexed: 11/07/2022]
Abstract
A high energy density plasma embedded in a neutral gas is able to launch an outward-propagating nonlinear electrostatic ionization wave that traps energetic electrons. The trapping maintains a strong sheath electric field, enabling rapid and long-lasting wave propagation aided by field ionization. Using 1D3V kinetic simulations, we examine the propagation of the ionization wave in the presence of a transverse MG-level magnetic field with the objective to identify qualitative changes in a regime where the initial thermal pressure of the plasma exceeds the pressure of the magnetic field (β>1). Our key finding is that the magnetic field stops the propagation by causing the energetic electrons sustaining the wave to lose their energy by emitting an electromagnetic wave. The emission is accompanied by the magnetic field expulsion from the plasma and an increased electron loss from the trapping wave structure. The described effect provides a mechanism mitigating rapid plasma expansion for those applications that involve an embedded plasma, such as high-flux neutron production from laser-irradiated deuterium gas jets.
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Affiliation(s)
- Haotian Mao
- Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, California 92093, USA
| | - Kathleen Weichman
- Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, California 92093, USA and University of Rochester, Laboratory for Laser Energetics, Rochester, New York 14623, USA
| | - Zheng Gong
- Center for High Energy Density Science, University of Texas at Austin, Texas 78712, USA and School of Physics, Peking University, 100871, People's Republic of China
| | - Todd Ditmire
- Center for High Energy Density Science, University of Texas at Austin, Texas 78712, USA
| | - Hernan Quevedo
- Center for High Energy Density Science, University of Texas at Austin, Texas 78712, USA
| | - Alexey Arefiev
- Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, California 92093, USA and Center for Energy Research, University of California at San Diego, La Jolla, California 92037, USA
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4
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Accurate spectra for high energy ions by advanced time-of-flight diamond-detector schemes in experiments with high energy and intensity lasers. Sci Rep 2021; 11:3071. [PMID: 33542470 PMCID: PMC7862373 DOI: 10.1038/s41598-021-82655-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 01/14/2021] [Indexed: 01/30/2023] Open
Abstract
Time-Of-Flight (TOF) methods are very effective to detect particles accelerated in laser-plasma interactions, but they show significant limitations when used in experiments with high energy and intensity lasers, where both high-energy ions and remarkable levels of ElectroMagnetic Pulses (EMPs) in the radiofrequency-microwave range are generated. Here we describe a novel advanced diagnostic method for the characterization of protons accelerated by intense matter interactions with high-energy and high-intensity ultra-short laser pulses up to the femtosecond and even future attosecond range. The method employs a stacked diamond detector structure and the TOF technique, featuring high sensitivity, high resolution, high radiation hardness and high signal-to-noise ratio in environments heavily affected by remarkable EMP fields. A detailed study on the use, the optimization and the properties of a single module of the stack is here described for an experiment where a fast diamond detector is employed in an highly EMP-polluted environment. Accurate calibrated spectra of accelerated protons are presented from an experiment with the femtosecond Flame laser (beyond 100 TW power and ~ 1019 W/cm2 intensity) interacting with thin foil targets. The results can be readily applied to the case of complex stack configurations and to more general experimental conditions.
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5
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Bang W, Albright BJ, Bradley PA, Vold EL, Boettger JC, Fernández JC. Linear dependence of surface expansion speed on initial plasma temperature in warm dense matter. Sci Rep 2016; 6:29441. [PMID: 27405664 PMCID: PMC4942619 DOI: 10.1038/srep29441] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/20/2016] [Indexed: 11/25/2022] Open
Abstract
Recent progress in laser-driven quasi-monoenergetic ion beams enabled the production of uniformly heated warm dense matter. Matter heated rapidly with this technique is under extreme temperatures and pressures, and promptly expands outward. While the expansion speed of an ideal plasma is known to have a square-root dependence on temperature, computer simulations presented here show a linear dependence of expansion speed on initial plasma temperature in the warm dense matter regime. The expansion of uniformly heated 1–100 eV solid density gold foils was modeled with the RAGE radiation-hydrodynamics code, and the average surface expansion speed was found to increase linearly with temperature. The origin of this linear dependence is explained by comparing predictions from the SESAME equation-of-state tables with those from the ideal gas equation-of-state. These simulations offer useful insight into the expansion of warm dense matter and motivate the application of optical shadowgraphy for temperature measurement.
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Affiliation(s)
- W Bang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - B J Albright
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - P A Bradley
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - E L Vold
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J C Boettger
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J C Fernández
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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6
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Zhao JR, Zhang XP, Yuan DW, Li YT, Li DZ, Rhee YJ, Zhang Z, Li F, Zhu BJ, Li YF, Han B, Liu C, Ma Y, Li YF, Tao MZ, Li MH, Guo X, Huang XG, Fu SZ, Zhu JQ, Zhao G, Chen LM, Fu CB, Zhang J. A novel laser-collider used to produce monoenergetic 13.3 MeV (7)Li (d, n) neutrons. Sci Rep 2016; 6:27363. [PMID: 27250660 PMCID: PMC4889997 DOI: 10.1038/srep27363] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 05/17/2016] [Indexed: 11/09/2022] Open
Abstract
Neutron energy is directly correlated with the energy of the incident ions in experiments involving laser-driven nuclear reactions. Using high-energy incident ions reduces the energy concentration of the generated neutrons. A novel "laser-collider" method was used at the Shenguang II laser facility to produce monoenergetic neutrons via (7)Li (d, n) nuclear reactions. The specially designed K-shaped target significantly increased the numbers of incident d and Li ions at the keV level. Ultimately, 13.3 MeV neutrons were obtained. Considering the time resolution of the neutron detector, we demonstrated that the produced neutrons were monoenergetic. Interferometry and a Multi hydro-dynamics simulation confirmed the monoenergetic nature of these neutrons.
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Affiliation(s)
- J R Zhao
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - X P Zhang
- Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - D W Yuan
- Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012, China
| | - Y T Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - D Z Li
- Institute of High Energy Physics, CAS, Beijing 100049, China
| | - Y J Rhee
- CoReLS, Institute for Basic Science, Gwangju 61005, Korea.,NDC, Korea Atomic Energy Research Institute, 34057, Korea
| | - Z Zhang
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - F Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - B J Zhu
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Yan F Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - B Han
- Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012, China
| | - C Liu
- Department of Astronomy, Beijing Normal University, Beijing 100875, China
| | - Y Ma
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Yi F Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - M Z Tao
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - M H Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - X Guo
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - X G Huang
- Shanghai Institute of Laser Plasma, Shanghai 201800, China
| | - S Z Fu
- Shanghai Institute of Laser Plasma, Shanghai 201800, China
| | - J Q Zhu
- National Laboratory on High Power Lasers and Physics, Shanghai 201800, China
| | - G Zhao
- Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012, China
| | - L M Chen
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China.,Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.,Collaborative Innovation Center of IFSA, Shanghai Jiaotong University, Shanghai 200240, China
| | - C B Fu
- Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - J Zhang
- Key Laboratory for Laser Plasmas (MOE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.,Collaborative Innovation Center of IFSA, Shanghai Jiaotong University, Shanghai 200240, China
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7
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Bang W, Albright BJ, Bradley PA, Vold EL, Boettger JC, Fernández JC. Uniform heating of materials into the warm dense matter regime with laser-driven quasimonoenergetic ion beams. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 92:063101. [PMID: 26764832 DOI: 10.1103/physreve.92.063101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Indexed: 06/05/2023]
Abstract
In a recent experiment at the Trident laser facility, a laser-driven beam of quasimonoenergetic aluminum ions was used to heat solid gold and diamond foils isochorically to 5.5 and 1.7 eV, respectively. Here theoretical calculations are presented that suggest the gold and diamond were heated uniformly by these laser-driven ion beams. According to calculations and SESAME equation-of-state tables, laser-driven aluminum ion beams achievable at Trident, with a finite energy spread of ΔE/E∼20%, are expected to heat the targets more uniformly than a beam of 140-MeV aluminum ions with zero energy spread. The robustness of the expected heating uniformity relative to the changes in the incident ion energy spectra is evaluated, and expected plasma temperatures of various target materials achievable with the current experimental platform are presented.
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Affiliation(s)
- W Bang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - B J Albright
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - P A Bradley
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - E L Vold
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J C Boettger
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J C Fernández
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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8
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Bang W, Albright BJ, Bradley PA, Gautier DC, Palaniyappan S, Vold EL, Cordoba MAS, Hamilton CE, Fernández JC. Visualization of expanding warm dense gold and diamond heated rapidly by laser-generated ion beams. Sci Rep 2015; 5:14318. [PMID: 26392208 PMCID: PMC4585717 DOI: 10.1038/srep14318] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 08/26/2015] [Indexed: 11/15/2022] Open
Abstract
With the development of several novel heating sources, scientists can now heat a small sample isochorically above 10,000 K. Although matter at such an extreme state, known as warm dense matter, is commonly found in astrophysics (e.g., in planetary cores) as well as in high energy density physics experiments, its properties are not well understood and are difficult to predict theoretically. This is because the approximations made to describe condensed matter or high-temperature plasmas are invalid in this intermediate regime. A sufficiently large warm dense matter sample that is uniformly heated would be ideal for these studies, but has been unavailable to date. Here we have used a beam of quasi-monoenergetic aluminum ions to heat gold and diamond foils uniformly and isochorically. For the first time, we visualized directly the expanding warm dense gold and diamond with an optical streak camera. Furthermore, we present a new technique to determine the initial temperature of these heated samples from the measured expansion speeds of gold and diamond into vacuum. We anticipate the uniformly heated solid density target will allow for direct quantitative measurements of equation-of-state, conductivity, opacity, and stopping power of warm dense matter, benefiting plasma physics, astrophysics, and nuclear physics.
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Affiliation(s)
- W. Bang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - B. J. Albright
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - P. A. Bradley
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D. C. Gautier
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S. Palaniyappan
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - E. L. Vold
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | | | - C. E. Hamilton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J. C. Fernández
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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9
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Bang W. Disassembly time of deuterium-cluster-fusion plasma irradiated by an intense laser pulse. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 92:013102. [PMID: 26274289 DOI: 10.1103/physreve.92.013102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Indexed: 06/04/2023]
Abstract
Energetic deuterium ions from large deuterium clusters (>10nm diameter) irradiated by an intense laser pulse (>10(16)W/cm(2)) produce DD fusion neutrons for a time interval determined by the geometry of the resulting fusion plasma. We present an analytical solution of this time interval, the plasma disassembly time, for deuterium plasmas that are cylindrical in shape. Assuming a symmetrically expanding deuterium plasma, we calculate the expected fusion neutron yield and compare with an independent calculation of the yield using the concept of a finite confinement time at a fixed plasma density. The calculated neutron yields agree quantitatively with the available experimental data. Our one-dimensional simulations indicate that one could expect a tenfold increase in total neutron yield by magnetically confining a 10-keV deuterium fusion plasma for 10ns.
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Affiliation(s)
- W Bang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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10
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Fu C, Bao J, Chen L, He J, Hou L, Li L, Li Y, Li Y, Liao G, Rhee Y, Sun Y, Xu S, Yuan D, Zhang X, Zhao G, Zhao J, Zhu B, Zhu J, Zhang J. Laser-driven plasma collider for nuclear studies. Sci Bull (Beijing) 2015. [DOI: 10.1007/s11434-015-0821-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Zhao JR, Zhang XP, Yuan DW, Chen LM, Li YT, Fu CB, Rhee YJ, Li F, Zhu BJ, Li YF, Liao GQ, Zhang K, Han B, Liu C, Huang K, Ma Y, Li YF, Xiong J, Huang XG, Fu SZ, Zhu JQ, Zhao G, Zhang J. Neutron yield enhancement in laser-induced deuterium-deuterium fusion using a novel shaped target. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:063505. [PMID: 26133837 DOI: 10.1063/1.4922912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Neutron yields have direct correlation with the energy of incident deuterons in experiments of laser deuterated target interaction [Roth et al., Phys. Rev. Lett. 110, 044802 (2013) and Higginson et al., Phys. Plasmas 18, 100703 (2011)], while deuterated plasma density is also an important parameter. Experiments at the Shenguang II laser facility have produced neutrons with energy of 2.45 MeV using d (d, n) He reaction. Deuterated foil target and K-shaped target were employed to study the influence of plasma density on neutron yields. Neutron yield generated by K-shaped target (nearly 10(6)) was two times higher than by foil target because the K-shaped target results in higher density plasma. Interferometry and multi hydro-dynamics simulation confirmed the importance of plasma density for enhancement of neutron yields.
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Affiliation(s)
- J R Zhao
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - X P Zhang
- Institute of Nuclear and Particle Physics (INPAC), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - D W Yuan
- Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012, China
| | - L M Chen
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Y T Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - C B Fu
- Institute of Nuclear and Particle Physics (INPAC), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Y J Rhee
- Nuclear Data Center, Korea Atomic Energy Research Institution, Daejon 305353, Korea
| | - F Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - B J Zhu
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Yan F Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - G Q Liao
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - K Zhang
- Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012, China
| | - B Han
- Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012, China
| | - C Liu
- Department of Astronomy, Beijing Normal University, Beijing 100875, China
| | - K Huang
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Y Ma
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - Yi F Li
- Laboratory of Optical Physics, Institute of Physics, CAS, Beijing 100190, China
| | - J Xiong
- Shanghai Institute of Laser Plasma, Shanghai 201800, China
| | - X G Huang
- Shanghai Institute of Laser Plasma, Shanghai 201800, China
| | - S Z Fu
- Shanghai Institute of Laser Plasma, Shanghai 201800, China
| | - J Q Zhu
- National Laboratory on High Power Lasers and Physics, Shanghai 201800, China
| | - G Zhao
- Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS, Beijing 100012, China
| | - J Zhang
- Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
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12
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Bang W, Quevedo HJ, Bernstein AC, Dyer G, Ihn YS, Cortez J, Aymond F, Gaul E, Donovan ME, Barbui M, Bonasera A, Natowitz JB, Albright BJ, Fernández JC, Ditmire T. Characterization of deuterium clusters mixed with helium gas for an application in beam-target-fusion experiments. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 90:063109. [PMID: 25615207 DOI: 10.1103/physreve.90.063109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Indexed: 06/04/2023]
Abstract
We measured the average deuterium cluster size within a mixture of deuterium clusters and helium gas by detecting Rayleigh scattering signals. The average cluster size from the gas mixture was comparable to that from a pure deuterium gas when the total backing pressure and temperature of the gas mixture were the same as those of the pure deuterium gas. According to these measurements, the average size of deuterium clusters depends on the total pressure and not the partial pressure of deuterium in the gas mixture. To characterize the cluster source size further, a Faraday cup was used to measure the average kinetic energy of the ions resulting from Coulomb explosion of deuterium clusters upon irradiation by an intense ultrashort pulse. The deuterium ions indeed acquired a similar amount of energy from the mixture target, corroborating our measurements of the average cluster size. As the addition of helium atoms did not reduce the resulting ion kinetic energies, the reported results confirm the utility of using a known cluster source for beam-target-fusion experiments by introducing a secondary target gas.
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Affiliation(s)
- W Bang
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87544, USA
| | - H J Quevedo
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas, 78712, USA
| | - A C Bernstein
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas, 78712, USA
| | - G Dyer
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas, 78712, USA
| | - Y S Ihn
- Department of Physics, University of Texas, Austin, Texas, 78712, USA
| | - J Cortez
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas, 78712, USA
| | - F Aymond
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas, 78712, USA
| | - E Gaul
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas, 78712, USA
| | - M E Donovan
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas, 78712, USA
| | - M Barbui
- Cyclotron Institute, Texas A&M University, College Station, Texas, 77843, USA
| | - A Bonasera
- Cyclotron Institute, Texas A&M University, College Station, Texas, 77843, USA and LNS-INFN, Via Santa Sofia 64, 95123 Catania, Italy
| | - J B Natowitz
- Cyclotron Institute, Texas A&M University, College Station, Texas, 77843, USA
| | - B J Albright
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87544, USA
| | - J C Fernández
- Los Alamos National Laboratory, Los Alamos, New Mexico, 87544, USA
| | - T Ditmire
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas, 78712, USA
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Bang W, Barbui M, Bonasera A, Quevedo HJ, Dyer G, Bernstein AC, Hagel K, Schmidt K, Gaul E, Donovan ME, Consoli F, De Angelis R, Andreoli P, Barbarino M, Kimura S, Mazzocco M, Natowitz JB, Ditmire T. Experimental study of fusion neutron and proton yields produced by petawatt-laser-irradiated D₂-³He or CD₄-³He clustering gases. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2013; 88:033108. [PMID: 24125372 DOI: 10.1103/physreve.88.033108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Indexed: 06/02/2023]
Abstract
We report on experiments in which the Texas Petawatt laser irradiated a mixture of deuterium or deuterated methane clusters and helium-3 gas, generating three types of nuclear fusion reactions: D(d,^{3}He)n, D(d,t)p, and ^{3}He(d,p)^{4}He. We measured the yields of fusion neutrons and protons from these reactions and found them to agree with yields based on a simple cylindrical plasma model using known cross sections and measured plasma parameters. Within our measurement errors, the fusion products were isotropically distributed. Plasma temperatures, important for the cross sections, were determined by two independent methods: (1) deuterium ion time of flight and (2) utilizing the ratio of neutron yield to proton yield from D(d,^{3}He)n and ^{3}He(d,p)^{4}He reactions, respectively. This experiment produced the highest ion temperature ever achieved with laser-irradiated deuterium clusters.
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Affiliation(s)
- W Bang
- Center for High Energy Density Science, C1510, University of Texas at Austin, Austin, Texas 78712, USA
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Barbui M, Bang W, Bonasera A, Hagel K, Schmidt K, Natowitz JB, Burch R, Giuliani G, Barbarino M, Zheng H, Dyer G, Quevedo HJ, Gaul E, Bernstein AC, Donovan M, Kimura S, Mazzocco M, Consoli F, De Angelis R, Andreoli P, Ditmire T. Measurement of the plasma astrophysical S factor for the 3He(d,p)4He reaction in exploding molecular clusters. PHYSICAL REVIEW LETTERS 2013; 111:082502. [PMID: 24010431 DOI: 10.1103/physrevlett.111.082502] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Indexed: 06/02/2023]
Abstract
The plasma astrophysical S factor for the 3He(d,p)4He fusion reaction was measured for the first time at temperatures of few keV, using the interaction of intense ultrafast laser pulses with molecular deuterium clusters mixed with 3He atoms. Different proportions of D2 and 3He or CD4 and 3He were mixed in the gas target in order to allow the measurement of the cross section for the 3He(d,p)4He reaction. The yield of 14.7 MeV protons from the 3He(d,p)4He reaction was measured in order to extract the astrophysical S factor at low energies. Our result is in agreement with other S factor parametrizations found in the literature.
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Affiliation(s)
- M Barbui
- Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA
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