COMPTEL gamma-ray line analysis techniques

Juergen Knoedlseder; Peter von Ballmoos; Roland Diehl; U. Oberlack; Volker Schoenfelder; H. Bloemen; W. Hermsen; James M. Ryan; Kevin Bennett

doi:10.1117/12.254000

18 October 1996 COMPTEL gamma-ray line analysis techniques

Juergen Knoedlseder, Peter von Ballmoos, Roland Diehl, U. Oberlack, Volker Schoenfelder, H. Bloemen, W. Hermsen, James M. Ryan, Kevin Bennett

Author Affiliations +

Proceedings Volume 2806, Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions; (1996) https://doi.org/10.1117/12.254000
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

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.

Citation Download Citation

Juergen Knoedlseder, Peter von Ballmoos, Roland Diehl, U. Oberlack, Volker Schoenfelder, H. Bloemen, W. Hermsen, James M. Ryan, and Kevin Bennett "COMPTEL gamma-ray line analysis techniques", Proc. SPIE 2806, Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions, (18 October 1996); https://doi.org/10.1117/12.254000

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