为获取聚龙一号实验装置负载放电产生硬X射线的能谱分布,设计了一套7通道硬X射线能谱仪。介绍了这套多通道硬X射线能谱仪的测谱原理、主要参数及根据测量结果回推光源辐射能谱的解谱算法。在聚龙一号装置丝阵负载物理实验中对测量系统进行考核,获得了信噪比较高的测量波形。利用最大熵方法进行解谱,获得了丝阵负载产生的硬X射线能谱分布,辐射能段主要集中在200~500 ke V附近,且1 MeV以上光子份额较低。
【英文摘要】
A 7-channel hard X-ray spectrometer was designed for measuring the photon energy distribution of the hard X-ray emitting from the loads used in Z-pinch experiments on PTS. In this paper,we present the measuring principle,configuration,measuring parameter and the unfolding method of the spectrometer. We tested our spectrometer on PTS machine,detected the hard X-rays produced during Z-pinch and acquired the signal curves of high signal-to-noise ratio. The maximum entropy method was employed in unfolding these...
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