Author/Authors :
Kraus، نويسنده , , H. and Danevich، نويسنده , , F.A. and Henry، نويسنده , , S. and Kobychev، نويسنده , , V.V. and Mikhailik، نويسنده , , V.B. and Mokina، نويسنده , , V.M. and Nagorny، نويسنده , , S.S. and Polischuk، نويسنده , , O.G. and Tretyak، نويسنده , , V.I.، نويسنده ,
Abstract :
The scintillation properties of a zinc tungstate crystal, shaped as a hexagonal prism (height 40 mm, diagonal 40 mm) were determined. An energy resolution of 10.7% for the 662 keV γ-line of 137Cs was measured with the scintillator placed in a light collection setup similar to that used by the CRESST dark matter search. The light output and decay kinetics of ZnWO4 were examined over the temperature range 7–300 K and confirmed to be competitive with those of CaWO4. The radioactive contaminations of the ZnWO4 scintillator measured in the Solotvina Underground Laboratory do not exceed 0.1–10 mBq/kg (depending on radionuclide). Our study highlights the excellent feasibility of this ZnWO4 scintillator for a cryogenic dark matter experiment.
