Response of CdWO4 crystal scintillator for few MeV ions and low energy electrons

Abstract

The response of a CdWO4 crystal scintillator to protons, alpha particles, Li, C, O and Ti ions with energies in the range 1 - 10 MeV was measured. The non-proportionality of CdWO4 for low energy electrons (4 - 110 keV) was studied with the Compton Coincidence Technique. The energy dependence of the quenching factors for ions and the relative light yield for low energy electrons was calculated using a semi-empirical approach. Pulse-shape discrimination ability between gamma quanta, protons, alpha particles and ions was investigated.

20 pages, 8 figs, accepted in Nucl. Instrum. Meth. A

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• Dark Matter Candidates from Particle Physics and Methods of Detection
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• New results from DAMA/LIBRA
• Results from 730 kg days of the CRESST-II Dark Matter Search
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• Pulse-shape discrimination with PbWO${}_4$ crystal scintillators
• Direct Dark Matter Searches
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• Radioactive contamination of scintillators
• First test of an enriched ${}^{116}$CdWO${}_4$ scintillating bolometer for neutrinoless double-beta-decay searches
• Semi-empirical calculation of quenching factors for scintillators: new results
• Digital Logarithmic Airborne Gamma Ray Spectrometer