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Higashi N, Iwata N, Sano T, Mima K, Sentoku Y. Isochoric heating of solid-density plasmas beyond keV temperature by fast thermal diffusion with relativistic picosecond laser light. Phys Rev E 2022; 105:055202. [PMID: 35706231 DOI: 10.1103/physreve.105.055202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 03/31/2022] [Indexed: 06/15/2023]
Abstract
The interaction of relativistic short-pulse lasers with matter produces fast electrons with over megaampere currents, which supposedly heats a solid target isochorically and forms a hot dense plasma. In a picosecond timescale, however, thermal diffusion from hot preformed plasma turns out to be the dominant process of isochoric heating. We describe a heating process, fast thermal diffusion, launched from the preformed plasma heated resistively by the fast electron current. We demonstrate the fast thermal diffusion in the keV range in a solid density plasma by a series of one-dimensional particle-in-cell simulations. A theoretical model of the fast thermal diffusion is developed and we derive the diffusion speed as a function of the laser amplitude and target density. Under continuous laser irradiation, the diffusion front propagates at a constant speed in uniform plasma. Our model can provide a guideline for fast isochoric heating using future kilojoule petawatt lasers.
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Affiliation(s)
- Naoki Higashi
- Department of Physics, Graduate School of Science, Osaka University, 1-1 Machikanecho, Toyonaka, Osaka 560-0043, Japan
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
- Division of Applied Quantum Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Natsumi Iwata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takayoshi Sano
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kunioki Mima
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yasuhiko Sentoku
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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Mori Y, Nishimura Y, Ishii K, Hanayama R, Kitagawa Y, Sekine T, Takeuchi Y, Satoh N, Kurita T, Kato Y, Kurita N, Kawashima T, Komeda O, Hioki T, Motohiro T, Sunahara A, Sentoku Y, Miura E, Iwamoto A, Sakagami H. 1-Hz Bead-Pellet Injection System for Fusion Reaction Engaged by a Laser HAMA Using Ultra-Intense Counter Beams. FUSION SCIENCE AND TECHNOLOGY 2018. [DOI: 10.1080/15361055.2018.1499393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Yoshitaka Mori
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Hamamatsu, Shizuoka, 431-1202, Japan
| | - Yasuhiko Nishimura
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Hamamatsu, Shizuoka, 431-1202, Japan
- Toyota Technical Development Corp., 1-21 Imae, Hanamoto-cho, Toyota, Aichi, 470-0334, Japan
| | - Katsuhiro Ishii
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Hamamatsu, Shizuoka, 431-1202, Japan
| | - Ryohei Hanayama
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Hamamatsu, Shizuoka, 431-1202, Japan
| | - Yoneyoshi Kitagawa
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Hamamatsu, Shizuoka, 431-1202, Japan
| | - Takashi Sekine
- Hamamatsu Photonics, K. K., 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Yasuki Takeuchi
- Hamamatsu Photonics, K. K., 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Nakahiro Satoh
- Hamamatsu Photonics, K. K., 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Takashi Kurita
- Hamamatsu Photonics, K. K., 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Yoshinori Kato
- Hamamatsu Photonics, K. K., 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Norio Kurita
- Hamamatsu Photonics, K. K., 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Toshiyuki Kawashima
- Hamamatsu Photonics, K. K., 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Osamu Komeda
- Toyota Motor Corporation, Advanced Material Engineering Division, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
| | - Tatsumi Hioki
- Nagoya University, Green Mobility Research Institute, Nagoya, Aichi, 464-8601, Japan
| | - Tomoyoshi Motohiro
- Nagoya University, Green Mobility Research Institute, Nagoya, Aichi, 464-8601, Japan
| | - Atsushi Sunahara
- Purdue University, Center for Materials Under Extreme Environment (CMUXE), 500 Centra Drive, West Lafayette, Indiana 47907
| | - Yasuhiko Sentoku
- Osaka University, Institute for Laser Engineering, Suita, Osaka, 565-0802, Japan
| | - Eisuke Miura
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Akifumi Iwamoto
- National Institute for Fusion Science, 322-6 Oroshi Toki, Gifu 509-5292, Japan
| | - Hitoshi Sakagami
- National Institute for Fusion Science, 322-6 Oroshi Toki, Gifu 509-5292, Japan
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Iwata N, Kojima S, Sentoku Y, Hata M, Mima K. Plasma density limits for hole boring by intense laser pulses. Nat Commun 2018; 9:623. [PMID: 29434203 PMCID: PMC5809619 DOI: 10.1038/s41467-018-02829-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 01/03/2018] [Indexed: 11/09/2022] Open
Abstract
High-power lasers in the relativistic intensity regime with multi-picosecond pulse durations are available in many laboratories around the world. Laser pulses at these intensities reach giga-bar level radiation pressures, which can push the plasma critical surface where laser light is reflected. This process is referred to as the laser hole boring (HB), which is critical for plasma heating, hence essential for laser-based applications. Here we derive the limit density for HB, which is the maximum plasma density the laser can reach, as a function of laser intensity. The time scale for when the laser pulse reaches the limit density is also derived. These theories are confirmed by a series of particle-in-cell simulations. After reaching the limit density, the plasma starts to blowout back toward the laser, and is accompanied by copious superthermal electrons; therefore, the electron energy can be determined by varying the laser pulse length.
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Affiliation(s)
- Natsumi Iwata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Sadaoki Kojima
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Yasuhiko Sentoku
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Masayasu Hata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kunioki Mima
- The Graduate School for the Creation of New Photon Industries, 1955-1 Kurematsu, Nishiku, Hamamatsu, Shizuoka, 141-1201, Japan
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Mori Y, Nishimura Y, Hanayama R, Nakayama S, Ishii K, Kitagawa Y, Sekine T, Sato N, Kurita T, Kawashima T, Kan H, Komeda O, Nishi T, Azuma H, Hioki T, Motohiro T, Sunahara A, Sentoku Y, Miura E. Fast Heating of Imploded Core with Counterbeam Configuration. PHYSICAL REVIEW LETTERS 2016; 117:055001. [PMID: 27517775 DOI: 10.1103/physrevlett.117.055001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Indexed: 06/06/2023]
Abstract
A tailored-pulse-imploded core with a diameter of 70 μm is flashed by counterirradiating 110 fs, 7 TW laser pulses. Photon emission (>40 eV) from the core exceeds the emission from the imploded core by 6 times, even though the heating pulse energies are only one seventh of the implosion energy. The coupling efficiency from the heating laser to the core using counterirradiation is 14% from the enhancement of photon emission. Neutrons are also produced by counterpropagating fast deuterons accelerated by the photon pressure of the heating pulses. A collisional two-dimensional particle-in-cell simulation reveals that the collisionless two counterpropagating fast-electron currents induce mega-Gauss magnetic filaments in the center of the core due to the Weibel instability. The counterpropagating fast-electron currents are absolutely unstable and independent of the core density and resistivity. Fast electrons with energy below a few MeV are trapped by these filaments in the core region, inducing an additional coupling. This might lead to the observed bright photon emissions.
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Affiliation(s)
- Y Mori
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Y Nishimura
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - R Hanayama
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - S Nakayama
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - K Ishii
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - Y Kitagawa
- The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Sekine
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - N Sato
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Kurita
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - T Kawashima
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - H Kan
- Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan
| | - O Komeda
- Advanced Material Engineering Division, Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
| | - T Nishi
- Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - H Azuma
- Aichi Synchrotron Radiation Center, Minamiyamaguchi-cho, Seto-shi, Aichi-ken 489-0965, Japan
| | - T Hioki
- Green Mobility Collaborative Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - T Motohiro
- Green Mobility Collaborative Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - A Sunahara
- Institute for Laser Technology, 1-8-4 Utsubo-honmachi, Nishi-ku, Osaka 550-0004, Japan
| | - Y Sentoku
- Department of Physics, University of Nevada, Reno, 1664 North Virginia Street, Reno, Nevada 89557, USA
| | - E Miura
- National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
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Inoue NT. A novel microfluidic system for the mass production of Inertial Fusion Energy shells. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/713/1/012011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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