摘要
研究了在辐射加热腔靶时x光通过诊断孔伴随着的堵口的物理过程。给出了两类感兴趣的物理状况的穿透率随时间变化与有关参量的定标规律。并且理论模型对于修正实验结果与反推腔体内部辐射场的信息很有用。
In order to receive the information of intense X-ray source inside cavity target with a size of a few hundreds micrometers, an aperture with ressonable scale is often designed in the wall of the cavity. X rays from inside rapidly heat the material of pinholerin, producing an ablation cloud that impedes transmission of the radiation signal viewed from the outside. So the transmission of intense radiation signal through pinhole is affected by the material and size of the pinhole, and depends on the parameters, for example, equivalent blackbody temperature and pulse shape etc. An analytical model which provides insight into the physics of closure process, is developed to describe the plasma closure effect.
出处
《强激光与粒子束》
EI
CAS
CSCD
1993年第3期405-414,共10页
High Power Laser and Particle Beams
关键词
辐射堵口
X射线诊断
诊断孔
激光
radiation closure, radiation transmissivity, X -ray diagnosis, radiation ablation.
