CAJ | 학술논문

提出一个用一维数值模拟方法研究黑腔诊断孔的堵口现象模型。它被用来研究黑腔诊断孔的出射光透过率及其变化规律。计算结果表明，主要挡光区的径向运动尺度与靶宽度可比，因而一维平板模拟近似模拟诊断孔堵口现象是合理可行的；主要挡光区的密度基本上满足ρ>0.2g*cm-3的规律；等离子体层的横向膨胀使得光透过率增大，在膨胀因子为0.8时计算得到在神光II激光条件下典型黑腔的加权平均透过率为0.75。
제출일개용일유수치모의방법연구흑강진단공적도구현상모형。타피용래연구흑강진단공적출사광투과솔급기변화규률。계산결과표명，주요당광구적경향운동척도여파관도가비，인이일유평판모의근사모의진단공도구현상시합리가행적；주요당광구적밀도기본상만족ρ>0.2g*cm-3적규률；등리자체층적횡향팽창사득광투과솔증대，재팽창인자위0.8시계산득도재신광II격광조건하전형흑강적가권평균투과솔위0.75。
When diagnostic holes of a gold hohlraum are heated by the X-rays radiation from hohlraum, the plasmas produced will reduce the mount of radiation reaching detectors,from which hohlraum's temperature is determined. With careful dealing the plasmas side expansion and radial convergence, the two-dimensional phenomena is simulated by using two one-dimensional simulations. One simulates the X-ray ablating the diagnostic hole to produce Au plasma and the other simulates the penetrability of a parallel light beam passingthe plasma from side. When the hohlraum is heated by Shengguang-II lasers. It is found that the region with ρ>0.2 g*cm-3 plays a major role in radiation shield. The penetrability given under condition is 0.72．