固体探测器中由于缺陷产生引起的能量损失
Energy loss due to defect creation in solid state detectors
摘要：
固态探测器材料中的阈值位移能量从几eV到~100 eV变化。如果由于核反冲事件而产生稳定或长寿命的缺陷，则部分反冲能量存储在变形的晶格中，因此在声子检测器中无法观察到。因此，这种效应的精确模型是必要的精确校准的反冲能量测量在低阈值声子探测器。此外，缺陷产生阈值的锐度在材料之间变化。对于硬材料，如金刚石，尖锐的阈值将导致能量损失效应的突然发生，导致在所观察到的反冲光谱中刚好低于阈值位移能量的突出峰。我们描述了如何使用这种效果可以用来区分核和电子反冲，只是测量的反冲光谱。
英文摘要：
The threshold displacement energy in solid state detector materials varies from several eV to ~100 eV. If a stable or long lived defect is created as a result of a nuclear recoil event, some part of the recoil energy is stored in the deformed lattice and is therefore not observable in a phonon detector. Thus, an accurate model of this effect is necessary for precise calibration of the recoil energy measurement in low threshold phonon detectors. Furthermore, the sharpness of the defect creation threshold varies between materials. For a hard material such as diamond, the sharp threshold will cause a sudden onset of the energy loss effect, resulting in a prominent peak in the observed recoil spectrum just below the threshold displacement energy. We describe how this effect can be used to discriminate between nuclear and electron recoils using just the measured recoil spectrum.
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