COMPTEL gamma-ray line analysis techniques
COMPTEL gamma-ray line analysis techniques
复制标题
COMPTEL 伽马射线线分析技术
DOI：
10.1117/12.254000
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
K. Bennett
中科院分区：
文献类型：
--
作者：
J. Knoedlseder;P. von Ballmoos;R. Diehl;U. Oberlack;V. Schoenfelder;H. Bloemen;W. Hermsen;J. Ryan;K. Bennett
本文介绍了目前用于研究 COMPTEL 1.8 MeV 伽马射线线数据的一些成像分析技术。在本文的第一部分中，提出了一种算法，该算法允许使用相邻能量间隔的测量来准确预测特定线能量的背景分布。第二部分讨论应用于 COMPTEL 数据的不同图像重建方法，即最大熵方法、Richardson-Lucy 算法和基于 Pixon 的图像重建。我们的结论是，经过 5 年的 COMPTEL 经验，1.8 MeV 伽马射线线成像技术已经成熟，可以对宇宙伽马射线线发射进行全面研究。
This paper presents some of the imaging analysis techniques which are currently used to investigate COMPTEL 1.8 MeV gamma-ray line data. In the first part of this paper, an algorithm is presented which allows the accurate prediction of the background distribution at a specific line energy using measurements at adjacent energy intervals. The second part deals with the different image reconstruction methods which are applied to COMPTEL data, namely the maximum entropy method, the Richardson-Lucy algorithm and Pixon- based image reconstruction. We conclude that after 5 years of experience with COMPTEL, 1.8 MeV gamma-ray line imaging techniques are well established allowing a comprehensive study of cosmic gamma-ray line emission.