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Mori Y, Nishimura Y, Hanayama R, et al. Fast Heating of Imploded Core with Counterbeam Configuration. Phys Rev Lett. 2016;117(5):055001doi: 10.1103/PhysRevLett.117.055001.
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. (2016). Fast Heating of Imploded Core with Counterbeam Configuration. Physical review letters, 117(5), 055001. https://doi.org/10.1103/PhysRevLett.117.055001
Mori, Y, et al. "Fast Heating of Imploded Core with Counterbeam Configuration." Physical review letters vol. 117,5 (2016): 055001. doi: https://doi.org/10.1103/PhysRevLett.117.055001
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. Phys Rev Lett. 2016 Jul 29;117(5):055001. doi: 10.1103/PhysRevLett.117.055001. Epub 2016 Jul 26. PMID: 27517775.
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Phys Rev Lett. 2016 Jul 29;117(5):055001. doi: 10.1103/PhysRevLett.117.055001. Epub 2016 Jul 26.

Fast Heating of Imploded Core with Counterbeam Configuration.

Physical review letters

Y Mori, Y Nishimura, R Hanayama, S Nakayama, K Ishii, Y Kitagawa, T Sekine, N Sato, T Kurita, T Kawashima, H Kan, O Komeda, T Nishi, H Azuma, T Hioki, T Motohiro, A Sunahara, Y Sentoku, E Miura

Affiliations

  1. The Graduate School for the Creation of New Photonics Industries, 1955-1 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan.
  2. Hamamatsu Photonics, K. K. 1820 Kurematsuchou, Nishi-ku, Hamamatsu 431-1202, Japan.
  3. Advanced Material Engineering Division, Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan.
  4. Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan.
  5. Aichi Synchrotron Radiation Center, Minamiyamaguchi-cho, Seto-shi, Aichi-ken 489-0965, Japan.
  6. Green Mobility Collaborative Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan.
  7. Institute for Laser Technology, 1-8-4 Utsubo-honmachi, Nishi-ku, Osaka 550-0004, Japan.
  8. Department of Physics, University of Nevada, Reno, 1664 North Virginia Street, Reno, Nevada 89557, USA.
  9. National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan.

PMID: 27517775 DOI: 10.1103/PhysRevLett.117.055001

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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