Publications associated with Dark matter

Simulation of light collection in calcium tungstate scintillation detectors

Nuclear Physics and Atomic Energy 16 (2015) 329-336

FA Danevich, VV Kobychev, RV Kobychev, H Kraus, VB Mikhailik, VM Mokina

© 2015, National Academy of Sciences of Ukraine. All rights reserved. Due high operational properties, the oxide scintillators are perspective for cryogenic scintillation experiments with aim of study of rare nuclear processes. In order to optimize light yield and the energy resolution we performed calculations of the efficiency of light collection for different geometries of scintillation detector with CaWO4 crystal by Monte-Carlo method using Litrani, Geant4 and Zemax packages. The calculations were compared with experimental data in the same configurations, depending on the crystal shape, surface treatment, material and shape of the reflector and pres-ence of optical contact. The best results were obtained with crystals shaped as the right prism with triangle base, with completely diffused surfaces, using mirror reflector shaped as a truncated cone. Simulations by using Litrani have shown the best correlation with experimental results.

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