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Volume 58 (1987)
- Issue 6 Pages 433-
- Issue 5 Pages 369-
- Issue 4 Pages 317-
- Issue 3 Pages 235-
- Issue 2 Pages 87-
- Issue 1 Pages 13-
Volume 58, Issue 5
Displaying 1-5 of 5 articles from this issue
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Yoneyoshi Kitagawa1987 Volume 58 Issue 5 Pages 369-382
Published: November 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSThis report reviews the research on a new accelerator concept which uses an intense laser light, that is to say, the plasma beat-wave accelerator. Intense colinear laser beams ωo ko and ω1 k1 shone on a plasma with a frequency seperation equal to the electron plasma frequency ωP can creat a large coherent longitudinal electric field of a few tens GV/m by the laser beat excitation of plasma oscillations. Accompanying favourable and deleterious physical effects using this process for a high energy beatwave accelerator are discussed : dephasing, pump depletion, plasma turbulence effects, plasma fibre effects, surfatron, wakeless triple-soliton, etc.View full abstractDownload PDF (1243K) -
Katsunobe Nishihara1987 Volume 58 Issue 5 Pages 383-391
Published: November 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSPhysical processes important to plasma modeling with computer simulations are discussed with critical space and time scales of a laser fusion plasma.View full abstractDownload PDF (880K) -
Takashi Yabe1987 Volume 58 Issue 5 Pages 392-401
Published: November 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSA brief review is given of the modeling of atomic physics and radiation transport in ICF (Inertial Confinement Fusion) simulation. In particular, a detailed description is given of the non-LTE (Local Thermodynamic Equilibrium) atomic physics for high-dense, high-Z materials.View full abstractDownload PDF (1015K) -
Shinji Yoshida, Susumu Ohshita, Hideo Sugai, Takayoshi Okuda1987 Volume 58 Issue 5 Pages 402-410
Published: November 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSHydrogen recycling properties have been evaluated in a hydrogen pulsed-discharge in a carbonized toroidal vessel, where a way to lower the recycling has been investigated. In the conventional carbonization, the hydrogen pulsed-discharge gives rise to an increase in pressure, leading to the recycling coefficient R>1. On the other hand, a helium glow discharge after the carbonization desorbs the hydrogens of carbon films with ion bombardments, which has realized R < 1 in the subsequent hydrogen discharge. In order to make relatively high capacity of hydrogen absorption possible, a new carbonization has been tried, in which a methane discharge (carbon deposition) and a helium discharge (hydrogen desorption) are alternately repeated to coat multi-layer films. In this case, the hydrogen recycling has been suppressed drastically where the maximum retention of hydrogens has been increased to 1.2×1016 atoms/cm2.View full abstractDownload PDF (921K) -
Takashi Kurasawa, Takenori Itoh, Yasuaki Yaguchi1987 Volume 58 Issue 5 Pages 411-419
Published: November 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSThe thermal thermonuclear instability of a deuterium plasma with inhomogeneous temperature and number density in a strong magnetic field is studied theoretically. The distribution of the number density is supposed to be proportional to that of the temperature. By solving the basic equation which governs the reactions, the growth rates in a pure DD fusion reactor and a catalyzed DD fusion reactor are obtained. It is shown that the plasmas with inhomogeneous temperature and number density in the above reactors are unstable to the thermal instability.View full abstractDownload PDF (463K)
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