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Spectral Analysis of Gamma Rays with the COS-B Satellite

Published online by Cambridge University Press:  14 August 2015

H. C. Van De Hulst
Affiliation:
Kamerlingh Onnes Laboratorium, Leiden, The Netherlands
A. Scheepmaker
Affiliation:
Kamerlingh Onnes Laboratorium, Leiden, The Netherlands
B. N. Swanenburg
Affiliation:
Kamerlingh Onnes Laboratorium, Leiden, The Netherlands
H. A. Mayer-Hasselwander
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für Extraterrestrische Physik, Garching b. München, Germany
E. Pfeffermann
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für Extraterrestrische Physik, Garching b. München, Germany
K. Pinkau
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für Extraterrestrische Physik, Garching b. München, Germany
H. Rothermel
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für Extraterrestrische Physik, Garching b. München, Germany
H. Schneider
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für Extraterrestrische Physik, Garching b. München, Germany
W. Voges
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für Extraterrestrische Physik, Garching b. München, Germany
J. Labeyrie
Affiliation:
Service d'électronique Physique, Centre d'études Nucléaires de Saclay, Gif-sur-Yvette, France
P. Keirle
Affiliation:
Service d'électronique Physique, Centre d'études Nucléaires de Saclay, Gif-sur-Yvette, France
J. Paul
Affiliation:
Service d'électronique Physique, Centre d'études Nucléaires de Saclay, Gif-sur-Yvette, France
G. Bellomo
Affiliation:
Università degli Studi di Milano, Istituto di Scienze Fisiche, Milano, Italy
G. Bignami
Affiliation:
Università degli Studi di Milano, Istituto di Scienze Fisiche, Milano, Italy
G. Boella
Affiliation:
Università degli Studi di Milano, Istituto di Scienze Fisiche, Milano, Italy
L. Scarsi
Affiliation:
Università degli Studi di Milano, Istituto di Scienze Fisiche, Milano, Italy
G. W. Hutchinson
Affiliation:
Physics Department, University of Southampton*, Southampton, Great Britain
A. J. Pearce
Affiliation:
Physics Department, University of Southampton*, Southampton, Great Britain
D. Ramsden
Affiliation:
Physics Department, University of Southampton*, Southampton, Great Britain
R. D. Wills
Affiliation:
Physics Department, University of Southampton*, Southampton, Great Britain
P. J. Wright
Affiliation:
Physics Department, University of Southampton*, Southampton, Great Britain

Abstract

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The ESRO satellite COS-B carries one single experiment aiming at the measurement of arrival direction and energy of celestial gamma rays with energies between 25 MeV and 10 GeV. The experiment is conventional in design and consists of a veto counter, a wire spark chamber, a telescope and an energy calorimeter.

The energy measurement is obtained by a CsI scintillation crystal of 4.7 radiation length thickness. The expected energy resolution at 100 MeV is 50% FWHM. The other detector elements are designed as to cause the least possible degradation of the energy measurement.

The possibilities for the detection of a small contribution of π -origin gamma rays in the presence of a power-law type background spectrum will be discussed.

Type
Part I: Gamma-Ray Astronomy
Copyright
Copyright © Reidel 1971