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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:53 |
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Conference: Bucharest University Faculty of Physics 2002 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
Experimental techniques for the detection of the high energy gamma rays of cosmic origin
Authors:
Gh. Dumitrescu (1), T. Angelescu (2), A.A. Radu (3)
Affiliation:
(1) Industrial Educational Group " Toma N. Socolescu", Ploiesti, Romania
(2) Physics Department, University of Bucharest
(3) The University of Chicago, The Enrico Fermi Institute, Laboratory for Astrophysics and Space Research, 933 E. 56th IL 60637, USA
E-mail
Keywords:
Abstract:
The observation of high energy gamma rays of cosmic origin in the early 90, by Volcano Ranch experiment opened a new direction of study for the astrophysics scientists. The very high energy and the very low flux of these gamma rays, posed numerous detection problems, which in turn were the object of a very intense research activity. The present article tries to review the detection techniques for the high energy gamma rays of cosmic origin. In the "Introduction" we summarize the specific problems involved in the detection of this type of radiation. "Chapter 1" presents the classic technique based on the use of scintillation detectors. "Chapter 2" includes the imaging atmospheric Cherenkov technique (IACT) and the sampling wavefront technique. "Chapter 3" is dedicated to the detection of the atmospheric nitrogen. "Chapter 4" describes issues related to the calibration of the detectors, the cross checking of the experimental data, the use of the Monte Carlo simulations and the use of the density observed at a distance of 600 m S(600), in order to estimate the primary energy. The characteristics of some future developments of the above presented techniques are included in the last chapter.
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