Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10716459 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 14 Pages |
Abstract
The properties of CaWO4 (CaWO) crystals in γ-spectrometry were studied at room and liquid nitrogen(LN2) temperatures. Two small samples of 10Ã10Ã4 mm3 and 10Ã10Ã8 mm3 size were tested, coupled to a Photonis XP3212 photomultiplier at room temperature and a large area avalanche photodiode at LN2 temperature. Light pulse shape and light output at room and LN2 temperatures were measured. Energy resolution and non-proportionality of the CaWO response versus γ-ray energy were studied and compared with those of small BGO and CdWO4 crystals to discuss further the origin of the intrinsic resolution of undoped scintillating crystals. A high light output of 4800±200 phe/MeV and a good energy resolution of 6.6±0.2% for 662 keV γ-rays from a 137Cs source were measured for the small samples coupled to the XP3212 photomultiplier.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
M. MoszyÅski, M. Balcerzyk, W. Czarnacki, A. Nassalski, T. SzczÄÅniak, H. Kraus, V.B. Mikhailik, I.M. Solskii,