Composite CaWO{sub 4} Detectors for the CRESST-II Experiment
Composite CaWO{sub 4} Detectors for the CRESST-II Experiment
复制标题
用于 CRESST-II 实验的复合 CaWO{sub 4} 探测器
DOI：
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
W. Westphal
中科院分区：
文献类型：
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作者：
M. Kiefer;G. Angloher;M. Bauer;I. Bavykina;A. Bento;A. Brown;C. Bucci;C. Ciemniak;C. Coppi;G. Deuter;F. Feilitzsch;D. Hauff;S. Henry;P. Huff;J. Imber;S. Ingleby;C. Isaila;J. Jochum;M. Kimmerle;H. Kraus;J. Lanfranchi;R. Lang;M. Małek;R. McGowan;V. Mikhailik;E. Pantic;F. Petricca;S. Pfister;W. Potzel;F. Probst;S. Roth;K. Rottler;C. Sailer;K. Schaffner;J. Schmaler;S. Scholl;W. Seidel;L. Stodolsky;A. Tolhurst;I. Usherov;W. Westphal
CRESST-II 代表“使用超导温度计进行低温稀有事件搜索”第二阶段，是一项寻找暗物质的实验。在意大利格兰萨索的 LNGS 设施中，运行了低温探测器装置，以便通过原子核的弹性散射、产生声子晶格激发和闪烁光来探测 WIMP。实验中使用的温度计由蒸发到 CaWO4 吸收晶体上的钨薄膜结构组成。蒸发过程导致闪烁光输出减少。再加上即将进行的 EURECA 实验需要大规模生产探测器，人们开始研究在粘在吸收体晶体上的较小晶体上生产温度计。在 Run 31 中，我们首次在 Gran Sasso 设置中测试了复合探测器。它们似乎如希望的那样产生了更高的光产量，并且可以为低光产量钳位事件提供额外的基于时间的辨别机制。
CRESST‐II, standing for Cryogenic Rare Events Search with Superconducting Thermometers phase II, is an experiment searching for Dark Matter. In the LNGS facility in Gran Sasso, Italy, a cryogenic detector setup is operated in order to detect WIMPs by elastic scattering off nuclei, generating phononic lattice excitations and scintillation light. The thermometers used in the experiment consist of a tungsten thin‐film structure evaporated onto the CaWO4 absorber crystal. The process of evaporation causes a decrease in the scintillation light output. This, together with the need of a big‐scale detector production for the upcoming EURECA experiment lead to investigations for producing thermometers on smaller crystals which are glued onto the absorber crystal. In our Run 31 we tested composite detectors for the first time in the Gran Sasso setup. They seem to produce higher light yields as hoped and could provide an additional time based discrimination mechanism for low light yield clamp events.
影响因子：
3.5
作者：
Lang R
通讯作者：
Lang R