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Proceedings Paper

COMPTEL gamma-ray line analysis techniques
Author(s): Juergen Knoedlseder; Peter von Ballmoos; Roland Diehl; U. Oberlack; Volker Schoenfelder; H. Bloemen; W. Hermsen; James M. Ryan; Kevin Bennett
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Paper 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.

Paper Details

Date Published: 18 October 1996
PDF: 12 pages
Proc. SPIE 2806, Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions, (18 October 1996); doi: 10.1117/12.254000
Show Author Affiliations
Juergen Knoedlseder, Ctr. d'Etude Spatiale des Rayonnements (France)
Peter von Ballmoos, Ctr. d'Etude Spatiale des Rayonnements (France)
Roland Diehl, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
U. Oberlack, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Volker Schoenfelder, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
H. Bloemen, State Research Organisation Netherlands (Netherlands)
W. Hermsen, State Research Organisation Netherlands (Netherlands)
James M. Ryan, Univ. of New Hampshire (United States)
Kevin Bennett, European Space Agency/ESTEC (Netherlands)

Published in SPIE Proceedings Vol. 2806:
Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions
Brian D. Ramsey; Thomas A. Parnell, Editor(s)

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