The CRESST-III low-mass WIMP detector

The CRESST-III low-mass WIMP detector
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DOI：
10.1088/1742-6596/718/4/042048
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发表时间：
2016-06
期刊：
Journal of Physics: Conference Series
影响因子：
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通讯作者：
R. Strauss;G. Angloher;A. Bento;C. Bucci;L. Canonica;X. Defay;A. Erb;F. von Feilitzsch;N. Ferreiro Iachellini;P. Gorla;A. Gütlein;D. Hauff;J. Jochum;M. Kiefer;H. Kluck;H. Kraus;J. Lanfranchi;J. Loebell;A. Münster;C. Pagliarone;F. Petricca;W. Potzel;F. Pröbst;F. Reindl;K. Schäffner;J. Schieck;S. Schönert;W. Seidel;L. Stodolsky;C. Strandhagen;A. Tanzke;H. T. Trinh Thi;C. Türkoğlu;M. Ufflnger;A. Ulrich;I. Usherov;S. Wawoczny;M. Willers;M. Wüstrich;A. Zöller
R. Strauss;G. Angloher;A. Bento;C. Bucci;L. Canonica;X. Defay;A. Erb;F. von Feilitzsch;N. Ferreiro Iachellini;P. Gorla;A. Gütlein;D. Hauff;J. Jochum;M. Kiefer;H. Kluck;H. Kraus;J. Lanfranchi;J. Loebell;A. Münster;C. Pagliarone;F. Petricca;W. Potzel;F. Pröbst;F. Reindl;K. Schäffner;J. Schieck;S. Schönert;W. Seidel;L. Stodolsky;C. Strandhagen;A. Tanzke;H. T. Trinh Thi;C. Türkoğlu;M. Ufflnger;A. Ulrich;I. Usherov;S. Wawoczny;M. Willers;M. Wüstrich;A. Zöller
中科院分区：
其他
文献类型：
--
作者：
R. Strauss;G. Angloher;A. Bento;C. Bucci;L. Canonica;X. Defay;A. Erb;F. von Feilitzsch;N. Ferreiro Iachellini;P. Gorla;A. Gütlein;D. Hauff;J. Jochum;M. Kiefer;H. Kluck;H. Kraus;J. Lanfranchi;J. Loebell;A. Münster;C. Pagliarone;F. Petricca;W. Potzel;F. Pröbst;F. Reindl;K. Schäffner;J. Schieck;S. Schönert;W. Seidel;L. Stodolsky;C. Strandhagen;A. Tanzke;H. T. Trinh Thi;C. Türkoğlu;M. Ufflnger;A. Ulrich;I. Usherov;S. Wawoczny;M. Willers;M. Wüstrich;A. Zöller

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下一代直接暗物质实验CRESST-III有很大的潜力显着提高对低质量WIMP（mx ≤ 10 GeV/c2）的灵敏度。我们提出了新的CRESST探测器模块：它由一个24 g CaWO 4晶体作为声子探测器和一个20×20 mm 2硅蓝宝石光探测器组成。声子能量阈值降低到~ 100 eV，并且实现了典型地5eV的光探测器分辨率。实现了一个完全封闭的内部探测器外壳，它有效地拒绝了来自表面α衰变的事件。保持目标晶体的CaWO 4棒也作为量热计操作，以区分与支撑结构相关的所有可能的伪影。预计自旋无关的WIMP-核子散射的灵敏度给出了CRESST-III的第一阶段，将于2016年初开始。
The next generation direct dark matter experiment CRESST-III has a high potential to significantly increase the sensitivity to low-mass WIMPs (mx ≲10GeV/c2). We present the new CRESST detector module: it consists of a 24 g CaWO4 crystal operated as a phonon detector and a 20×20 mm2 silicon-on-sapphire light detector. The phonon energy threshold is lowered to ~100eV and a light detector resolution of typically 5eV is achieved. A fully-scintillating inner detector housing is realised which efficiently rejects events from surface-alpha decays. The CaWO4 sticks holding the target crystal are also operated as calorimeters to discriminate all possible artefacts related to the support structure. A projection for the sensitivity to spin-independent WIMP-nucleon scattering is given for the first phase of CRESST-III which will start beginning of 2016.