User:Tactic apsd

TACTIC (TeV Atmospheric Cherenkov Telescope with Imaging Camera)), A Gamma-ray telescope array set up at Mt. Abu, Rajasthan, India has been deployed for the observation of TeV gamma-ray sources since the year 2000. The TACTIC telescope array comprises a 255-pixel imaging telescope located at the center of an equilateral triangle of 20m side and 3 vertex elements positioned at the corners of the triangle. Each of the vertex elements deploys a 16 pixel camera which is being presently optimized to detect variations in the Cerenkov light pool for the improvement in the Quality Factor. In this mode of operation the master trigger based on topological considerations is generated by the Imaging element. Operating at an energy threshold of ~ 1 TeV the telescope has picked up gamma-ray flares from extragalactic objects Mkn 421 and Mkn 501 and observing various TeV source.