Author/Authors :
Hayashi، نويسنده , , Y. and Aikawa، نويسنده , , Y. and Gopalakrishnan، نويسنده , , N.V. and Gupta، نويسنده , , S.K. and Ikeda، نويسنده , , N. and Ito، نويسنده , , N. and Jain، نويسنده , , A. and John، نويسنده , , A.V. and Karthikeyan، نويسنده , , S. and Kawakami، نويسنده , , S. and Kojima، نويسنده , , H. and Matsuyama، نويسنده , , T. and Mohanty، نويسنده , , D.K. and Mohanty، نويسنده , , P.K. and Morris، نويسنده , , S.D. and Nonaka، نويسنده , , T. and Oshima، نويسنده , , A. and Rao، نويسنده , , B.S. and Ravindran، نويسنده , , K.C. and Sasano، نويسنده , , M. and Sivaprasad، نويسنده , , K. and Sreekantan، نويسنده , , B.V. and Tanaka، نويسنده , , H. and Tonwar، نويسنده , , S.C. and Viswanathan، نويسنده , , K. and Yoshikoshi، نويسنده , , T.، نويسنده ,
Abstract :
Certain aspects of ultra-high energy (UHE) cosmic ray astrophysics require correlated studies on the electron and muon components of air showers, namely, the search for cosmic ray sources through γ -ray astronomy and studies on the variation of the nuclear composition of primary cosmic rays with energy. While studies on the electron component provide basic information about the arrival direction and energy, it is the muon component that plays a crucial role in distinguishing primary γ -rays from charged cosmic ray particles and in determining the composition.
e area (560 m 2 ), tracking muon detector of the GRAPES-3 experiment, operating at Ooty in southern India, has been designed for detailed studies on both of these aspects of UHE cosmic ray astrophysics. We present here the details of the muon detector, associated electronics and the data acquisition system. A brief discussion of the potential of the muon detector is presented through simulation studies.
Keywords :
Cosmic rays , Cosmic ray detectors , composition , Cosmic ray interactions , Energy spectra and interactions , Gamma-ray sources , Extensive air showers
