Title of article
A generalized ray-tracing procedure for an atmospheric Cherenkov imaging telescope and optical characteristics of the TACTIC light collector
Author/Authors
Tickoo، نويسنده , , A.K. and Suthar، نويسنده , , R.L. and Koul، نويسنده , , R. and Sapru، نويسنده , , M.L. and Kumar، نويسنده , , N. and Kaul، نويسنده , , C.L. and Yadav، نويسنده , , K.K. and Thoudam، نويسنده , , S. and Kaul، نويسنده , , S.K. and Venugopal، نويسنده , , K. and Kothari، نويسنده , , Eric M. and Goyal، نويسنده , , H.C. and Chandra، نويسنده , , P. L. Dhar، نويسنده , , V.K. and Rannot، نويسنده , , R.C. and Koul، نويسنده , , M.K. and Kau، نويسنده ,
Pages
14
From page
177
To page
190
Abstract
A generalized ray-tracing procedure has been developed, which facilitates the design of a multimirror-based light collector used in atmospheric Cherenkov telescopes. This procedure has been employed to study the optical characteristics of the 3.5 m diameter light collector of the TACTIC Imaging telescope. Comparison of the measured point-spread function of the light collector with the simulated performance of ideal Davies–Cotton and paraboloid designs has been made to determine an optimum arrangement of the 34 spherical mirror facets used in the telescope to obtain the best possible point-spread function. A description of the ray-tracing subroutine used for processing CORSIKA-generated Cherenkov data, required for carrying out Monte-Carlo simulation studies, is also discussed in the paper.
Keywords
TACTIC telescope , Ray-tracing formalism , ? -ray astronomy
Journal title
Astroparticle Physics
Record number
2025693
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