%0 Journal Article %1 2015SiversCaWO4LY %A v. Sivers, M. %A Clark, M. %A Di Stefano, P. C. F. %A Erb, A. %A Gütlein, A. %A Lanfranchi, J.-C. %A Münster, A. %A Nadeau, P. %A Piquemal, M. %A Potzel, W. %A Roth, S. %A Schreiner, K. %A Strauss, R. %A Wawoczny, S. %A Willers, M. %A Zöller, A. %D 2015 %J Journal of Applied Physics %K cawo4 ly scintillation %N 16 %R http://dx.doi.org/10.1063/1.4934741 %T Low-temperature scintillation properties of CaWO4 crystals for rare-event searches %U http://scitation.aip.org/content/aip/journal/jap/118/16/10.1063/1.4934741 %V 118 %X In prospect of its application in cryogenic rare-event searches, we have investigated the low-temperature scintillation properties of CaWO4 crystals down to 3.4 K under α and γ excitation. Concerning the scintillation decay times, we observe a long component in the ms range which significantly contributes to the light yield below 40 K. For the first time we have measured the temperature dependence of the α/γ-ratio of the light yield. This parameter, which can be used to discriminate α and γ events in scintillating bolometers, is found to be ∼8%–15% smaller at low temperatures compared to room temperature.

@article{2015SiversCaWO4LY, abstract = {In prospect of its application in cryogenic rare-event searches, we have investigated the low-temperature scintillation properties of CaWO4 crystals down to 3.4 K under α and γ excitation. Concerning the scintillation decay times, we observe a long component in the ms range which significantly contributes to the light yield below 40 K. For the first time we have measured the temperature dependence of the α/γ-ratio of the light yield. This parameter, which can be used to discriminate α and γ events in scintillating bolometers, is found to be ∼8%–15% smaller at low temperatures compared to room temperature.}, added-at = {2015-11-23T10:05:58.000+0100}, author = {v. Sivers, M. and Clark, M. and Di Stefano, P. C. F. and Erb, A. and Gütlein, A. and Lanfranchi, J.-C. and Münster, A. and Nadeau, P. and Piquemal, M. and Potzel, W. and Roth, S. and Schreiner, K. and Strauss, R. and Wawoczny, S. and Willers, M. and Zöller, A.}, biburl = {https://www.bibsonomy.org/bibtex/295fe969eccd9114584a0ae9353eb5838/strandhagen}, description = {Low-temperature scintillation properties of CaWO4 crystals for rare-event searches}, doi = {http://dx.doi.org/10.1063/1.4934741}, eid = {164505}, interhash = {0425cc1694033b91f5ccfde570df0dfc}, intrahash = {95fe969eccd9114584a0ae9353eb5838}, journal = {Journal of Applied Physics}, keywords = {cawo4 ly scintillation}, number = 16, timestamp = {2015-11-23T10:05:58.000+0100}, title = {Low-temperature scintillation properties of CaWO4 crystals for rare-event searches}, url = {http://scitation.aip.org/content/aip/journal/jap/118/16/10.1063/1.4934741}, volume = 118, year = 2015 }