Enhanced performance of an electron tracking Compton gamma-ray telescope

Akyuz A., BHATTACHARYA D., O'NEILL T., SAMIMI J., ZYCH A.

NEW ASTRONOMY, vol.9, no.2, pp.127-135, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 9 Issue: 2
  • Publication Date: 2004
  • Doi Number: 10.1016/j.newast.2003.07.004
  • Journal Name: NEW ASTRONOMY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.127-135
  • Çukurova University Affiliated: Yes

Abstract

TIGRE, the UCR Compton gamma-ray telescope, is designed to make use of the Compton recoil electron track to improve the flux sensitivity in the medium gamma-ray energy range (0.4-100 MeV). TIGRE uses multilayers of silicon strip detectors to track Compton scattered electrons, and CsI detectors to measure the scattered photon energy and direction. In this work, using Monte-Carlo simulation, we show the improvement that can be obtained when the electron tracking feature is added to a conventional Compton telescope. In simulating a Crab-like source in a balloon-background environment, the flux sensitivity for TIGRE is enhanced by a factor of 2.5 and the source location accuracy by a factor 3 over a non-tracking design. (C) 2003 Elsevier B.V. All rights reserved.