物理学报Issue(1)：1-6,6.DOI:10.7498/aps.64.015203
用X-pinch对双丝Z箍缩进行轴向X射线背光照相∗
Axial backlighting of two-wire Z-pinch using an X-pinch as an X-ray source
摘要
Abstract
The axial backlighting of two-wire Z-pinch using an X-pinch as an X-ray source was conducted on PPG-1, a pulsed power generator with a current of 400 kA in amplitude and 100 ns in pulse width. Its time-resolved axial backlighting images are obtained. In the backlighting images all the physical processes similar to those occurring in the early stage of the wire-array Z-pinch are observed, including the expansion of the high-density wire core surrounded by low-density coronal plasmas, the motion of the coronal plasma toward the axis of the wire-array, and the formation of precursor plasma. The areal mass density of the plasma shown in the backlighting images is calibrated with step-wedge filters. And the time-resolved radial distributions of the areal mass density of the plasma from the two-wire Z-pinch are obtained.关键词
X-pinch/Z箍缩/X射线背光照相/阶跃光楔滤片Key words
X-pinch/Z-pinch/X-ray backlighting/step-wedge filter引用本文复制引用
赵屾,朱鑫磊,石桓通,邹晓兵,王新新..用X-pinch对双丝Z箍缩进行轴向X射线背光照相∗[J].物理学报,2015,(1):1-6,6.基金项目
国家自然科学基金(批准号:51177086,11135007,51237006)资助的课题.* Project supported by the National Natural Science Foundation of China (Grant Nos.51177086,11135007,51237006) （批准号:51177086,11135007,51237006）
