蒙特卡罗采样法辐射温度测量不确定度分析  

Uncertainty analysis for diagnosis of radiation temperature using Monte-Carlo sampling

作　　者：宋天明[1] 李三伟[1] 易荣清[1] 杨家敏[1] 江少恩[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2012年第10期2351-2354,共4页High Power Laser and Particle Beams

摘　　要：确定了影响辐射温度测量的软X光能谱仪各种光学元件、电子器件的不确定度及还原算法等不确定度来源。建立了基于蒙特卡罗随机采样的不确定度分析方法,获得了各种不确定度综合影响下的辐射温度不确定度。通过单独对谱仪各个探测通道时间对齐进行的分析,显示这一因素对辐射温度不确定度有较大影响。Soft-X-ray spectrometers are used in diagnosis of the equivalent radiation temperature of hohlraum in indirectly driven inertial confinement fusion experiments. Uncertainties of the soft-X-ray optical elements and electronic devices of the spec- trometer, and the recovery methods are determined, which influence the measurement of the radiation temperature. The uncer tainty analysis method based on Monte-Carlo sampling is implemented and uncertainty of the radiation temperature including all kinds of uncertainty factors is obtained. The alignment of signals from different detection channels of the multi-channel spectrom- eter is analyzed separately, which proves to be a large uncertainty source.

关 键 词：等效辐射温度 软X光能谱仪 不确定度分析 蒙特卡罗采样 

分 类 号：TL651[核科学技术—核技术及应用] O434[机械工程—光学工程]