摘要
用球面石英弯晶衍射、CCD记录测量铝丝阵Z箍缩中的时间积分X射线连续能谱,并由连续谱斜率拟合出电子温度.该法获得的拟合数据点多,能有效筛除含线辐射的数据,减弱线辐射的影响,求得更可靠的等离子体核心高温区的温度.以发次09076为例,核心温度约为250eV,在95%的置信度范围里,其变化范围约241—258eV.
Time-integrated X-ray continuum spectra measured with spherical bent quartz crystal and CCD in aluminum wire array Z-pinches,provide electron temperature by fitting the continuum slope.More data obtained for fitting and markedly reduced influence of line radiation by removing the data superimposed with line spectra,make the temperature in hot core region of plasma more reliable.In experiment of shot No.09076,the core temperature is around 250 eV,ranging from 241 eV to 258 eV at a 95% confidence level.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2011年第4期418-421,共4页
Acta Physica Sinica
基金
国家自然科学基金(批准号:10635050)资助的课题~~
关键词
球面弯晶
连续谱
电子温度
Z箍缩
spherical bent crystal
continuum
electron temperature
Z-pinch