Feedout and Rayleigh-Taylor seeding induced by long wavelength perturbations in accelerated planar foils

被引:40
作者
Betti, R
Lobatchev, V
McCrory, RL
机构
[1] Univ Rochester, Laser Energet Lab, Dept Mech Engn, Rochester, NY 14623 USA
[2] Univ Rochester, Dept Phys, Rochester, NY 14623 USA
关键词
D O I
10.1103/PhysRevLett.81.5560
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The perturbation transfer between the rear and front surface (feedout), secular distortion, and Rayleigh-Taylor (R-T) instability growth is studied for long wavelength modes in accelerated flat foils. A simple formula is derived, relating the R-T growth factor to the amplitude of the rear surface perturbation. Comparisons with two-dimensional simulations confirm the validity of the theory.
引用
收藏
页码:5560 / 5563
页数:4
相关论文
共 15 条
[1]   Simulation of instability growth rates on the front and back of laser accelerated planar targets [J].
Bel'kov, SA ;
Mkhitarian, LS ;
Vinokurov, OA ;
Kochemasov, GG ;
Bondarenko, SV ;
Wilson, DC ;
Hoffman, NM .
PHYSICS OF PLASMAS, 1998, 5 (08) :2988-2996
[2]   Direct-drive laser fusion: Status and prospects [J].
Bodner, SE ;
Colombant, DG ;
Gardner, JH ;
Lehmberg, RH ;
Obenschain, SP ;
Phillips, L ;
Schmitt, AJ ;
Sethian, JD ;
McCrory, RL ;
Seka, W ;
Verdon, CP ;
Knauer, JP ;
Afeyan, BB ;
Powell, HT .
PHYSICS OF PLASMAS, 1998, 5 (05) :1901-1918
[3]   Comparison between measured and calculated nonuniformities of Nike laser beams smoothed by induced spatial incoherence [J].
Deniz, AV ;
Lehecka, T ;
Lehmberg, RH ;
Obenschain, SP .
OPTICS COMMUNICATIONS, 1998, 147 (4-6) :402-410
[4]  
GONCHAROV VN, 1998, THESIS U ROCHESTER, P33501
[5]   RADIOACTIVELY INDUCED SUBLIMATION IN SOLID TRITIUM [J].
HOFFER, JK ;
FOREMAN, LR .
PHYSICAL REVIEW LETTERS, 1988, 60 (13) :1310-1313
[6]   THEORY OF INDUCED SPATIAL INCOHERENCE [J].
LEHMBERG, RH ;
SCHMITT, AJ ;
BODNER, SE .
JOURNAL OF APPLIED PHYSICS, 1987, 62 (07) :2680-2701
[7]  
Lindl J.D., 1998, INERTIAL CONFINEMENT, P61
[8]   LASER COMPRESSION OF MATTER TO SUPER-HIGH DENSITIES - THERMONUCLEAR (CTR) APPLICATIONS [J].
NUCKOLLS, J ;
THIESSEN, A ;
WOOD, L ;
ZIMMERMAN, G .
NATURE, 1972, 239 (5368) :139-+
[9]   Measurements of laser-imprinted perturbations and Rayleigh-Taylor growth with the Nike KrF laser [J].
Pawley, CJ ;
Gerber, K ;
Lehmberg, RH ;
McLean, EA ;
Mostovych, AN ;
Obenschain, SP ;
Sethian, JD ;
Serlin, V ;
Stamper, JA ;
Sullivan, CA ;
Bodner, SE ;
Colombant, D ;
Dahlburg, JP ;
Schmitt, AJ ;
Gardner, JH ;
Brown, C ;
Seely, JF ;
Lehecka, T ;
Aglitskiy, Y ;
Deniz, AV ;
Chan, Y ;
Metzler, N ;
Klapisch, M .
PHYSICS OF PLASMAS, 1997, 4 (05) :1969-1977
[10]   IMPROVED LASER-BEAM UNIFORMITY USING THE ANGULAR-DISPERSION OF FREQUENCY-MODULATED LIGHT [J].
SKUPSKY, S ;
SHORT, RW ;
KESSLER, T ;
CRAXTON, RS ;
LETZRING, S ;
SOURES, JM .
JOURNAL OF APPLIED PHYSICS, 1989, 66 (08) :3456-3462