Author/Authors :
Mukhopadhyay، نويسنده , , S. and Bhattacharya، نويسنده , , Srijit and Pandit، نويسنده , , Deepak K. Ray، نويسنده , , A. and Pal، نويسنده , , Surajit and Banerjee، نويسنده , , K. and Kundu، نويسنده , , S. and Rana، نويسنده , , T.K. and Bhattacharya، نويسنده , , S. and Bhattacharya، نويسنده , , C. and De، نويسنده , , A. and Banerjee، نويسنده , , S.R.، نويسنده ,
Abstract :
A large BaF2 detector array along with its dedicated CAMAC electronics and VME based data acquisition system has been designed, constructed and installed successfully at VECC, Kolkata for studying high energy γ rays ( > 8 MeV ). The array consists of 162 detector elements. The detectors were fabricated from bare barium fluoride crystals (each measuring 35 cm in length and having cross-sectional area of 3.5 × 3.5 cm 2 ). The basic properties of the detectors (energy resolution, time resolution, efficiency, uniformity, fast to slow ratio, etc.) were studied exhaustively. Complete GEANT3 Monte Carlo simulations were performed to optimize the detector design and also to generate the response function. The detector system has been used successfully to measure high energy photons from 113Sb, formed by bombarding 145 and 160 MeV 20Ne beams on a 93Nb target. The measured experimental spectra are in good agreement with those from a modified version of the statistical model code CASCADE. In this paper, we present the complete description of this detector array along with its in-beam performance.
