论文标题
固态检测器中缺陷引起的能量损失
Energy loss due to defect creation in solid state detectors
论文作者
论文摘要
固态检测器材料中的阈值位移能量从几个EV到〜100 eV不等。如果由于核后坐力事件而产生了稳定或长期的缺陷，则后坐力的某些部分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，这种效果的准确模型对于在低阈值声子检测器中的后坐力测量值进行精确校准是必需的。此外，缺陷创造阈值的清晰度在材料之间有所不同。对于诸如钻石之类的硬材料，尖锐的阈值将引起能量损失效应的突然发作，从而导致观察到的后坐力光谱在阈值位移能量以下的突出峰。我们描述了如何仅使用测量的后坐力光谱来使用这种效果来区分核和电子后坐力。
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.
