论文标题
研究硅望远镜的角度分析方法的研究
Study of a data analysis method for the angle resolving silicon telescope
论文作者
论文摘要
开发了一种新的数据分析方法，用于在CERN飞行设施N_TOF的中子时间引入的硅望远镜的角度分析方法。望远镜已经用于测量出口通道中的几个中子诱导的反应与带电颗粒的反应。通过$^{12} $ c（$ n，p $）和$^{12} $ c（$ n，d $）反应的最新联合测量，需要开发高度详细的方法。这些数据的可靠分析必须解释涉及反应的挑战性质，因为它们受子核中多个激发态的影响，并由反应产物的各向异性角度分布进行特征。未删节的分析程序旨在从所有相关反应参数（绝对横截面，分支比和角度分布）的单独重建中，源于由单独的硅条检测到的偶然计数的积分数。为了评估其直接适用于这些实验数据，在与$^{12} $ c（$ n，p $）和$^{12} $ c（$ n，d $）测量相关的特定条件下测试了此过程。根据得出的结论，原始方法适应了输入数据中特定的不确定性级别。
A new data analysis method is developed for the angle resolving silicon telescope introduced at the neutron time of flight facility n_TOF at CERN. The telescope has already been used in measurements of several neutron induced reactions with charged particles in the exit channel. The development of a highly detailed method is necessitated by the latest joint measurement of the $^{12}$C($n,p$) and $^{12}$C($n,d$) reactions from n_TOF. The reliable analysis of these data must account for the challenging nature of the involved reactions, as they are affected by the multiple excited states in the daughter nuclei and characterized by the anisotropic angular distributions of the reaction products. The unabridged analysis procedure aims at the separate reconstruction of all relevant reaction parameters - the absolute cross section, the branching ratios and the angular distributions - from the integral number of the coincidental counts detected by the separate pairs of silicon strips. This procedure is tested under the specific conditions relevant for the $^{12}$C($n,p$) and $^{12}$C($n,d$) measurements from n_TOF, in order to assess its direct applicability to these experimental data. Based on the reached conclusions, the original method is adapted to a particular level of uncertainties in the input data.
