Towards absolute gain calibration of the TACTIC imaging element

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2460

Title:	Towards absolute gain calibration of the TACTIC imaging element
Authors:	Tickoo, A. K Dhar, V. K Venugopal, K Yadav, K. K Kaul, S. K Koul, R Kothari, M. K Goyal, H. C Chandra, P Bhatt, N Bhat, C. L
Keywords:	PMT Detectors Absolute Gain Calibration TACTIC Telescope
Issue Date:	2002
Publisher:	Astronomical Society of India
Citation:	BASI, Vol. 30, No. 1, pp. 381 - 384
Abstract:	The imaging element of the 4-element TACTIC telescope array has been in operation at Mt. Abu since 1997, for carrying out detailed investigations of gamma-ray sources in the TeV energy range. In order to characterize the progenitor particle (gamma-ray / cosmic ray), a relative gain calibration system, based on a high intensity LED, has been in operation. However, for calorimetric purposes, an absolute gain calibration system is necessary and has been developed for on-line calibration of 4 out of 349- pixels of its imaging camera, using Am241 -based light pulsers. The details of the scheme followed and the results obtained so far are presented in this paper.
URI:	http://hdl.handle.net/2248/2460
Appears in Collections:	BASI Publications

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