论文标题
具有EV尺度阈值和100 KEV尺度动态范围的声子介导的低温粒子探测器的设计和表征
Design and Characterization of a Phonon-Mediated Cryogenic Particle Detector with an eV-Scale Threshold and 100 keV-Scale Dynamic Range
论文作者
论文摘要
我们介绍了对低温语音子敏感的1克Si检测器的设计和表征，该检测器利用了Neganov-Trofimov-Luke效应来检测单封型激发。当在整个晶体上没有电压偏置时，该设备可实现2.65（2）〜EV声子能量分辨率，并在100〜V偏置下具有0.03电子孔对的相应电荷分辨率。借助连续阅读的数据采集系统和离线最佳滤镜触发器，我们获得了9.2〜EV阈值，触发率为20〜Hz。使用基于脉冲区域的能量估计器对检测器的能量尺度进行校准高达120 〜KEV。该设备的高性能允许其应用于不同的领域，其中需要出色的能量分辨率，低阈值和较大的动态范围，包括暗物质搜索，相干性中微子核散射的精确测量以及电离产量测量值。
We present the design and characterization of a cryogenic phonon-sensitive 1-gram Si detector exploiting the Neganov-Trofimov-Luke effect to detect single-charge excitations. This device achieved 2.65(2)~eV phonon energy resolution when operated without a voltage bias across the crystal and a corresponding charge resolution of 0.03 electron-hole pairs at 100~V bias. With a continuous-readout data acquisition system and an offline optimum-filter trigger, we obtain a 9.2~eV threshold with a trigger rate of the order of 20~Hz. The detector's energy scale is calibrated up to 120~keV using an energy estimator based on the pulse area. The high performance of this device allows its application to different fields where excellent energy resolution, low threshold, and large dynamic range are required, including dark matter searches, precision measurements of coherent neutrino-nucleus scattering, and ionization yield measurements.
