标题： 高纯度锗P型点接触探测器中靠近锂扩散N+接触处的信号特性 显示英文标题

标题： Characteristics of Signals Originating Near the Lithium-Diffused N+ Contact of High Purity Germanium P-Type Point Contact Detectors

摘要： 对源自p型点接触（PPC）高纯度锗探测器（HPGe）的锂扩散n+接触附近的信号进行研究。 活性锗与n+接触的完全死层之间的过渡区域被 examined。 显示在此过渡区域中的能量沉积会导致部分电荷收集。 这提供了一种机制，使具有明确能量的事件在较低能量处对能量谱的连续体做出贡献。 引入了一种新方法来量化此背景源的贡献。 运行锗探测器且能量阈值非常低的实验可能会受益于本文提出的方法。 显示英文摘要

摘要： A study of signals originating near the lithium-diffused n+ contact of p-type point contact (PPC) high purity germanium detectors (HPGe) is presented. The transition region between the active germanium and the fully dead layer of the n+ contact is examined. Energy depositions in this transition region are shown to result in partial charge collection. This provides a mechanism for events with a well defined energy to contribute to the continuum of the energy spectrum at lower energies. A novel technique to quantify the contribution from this source of background is introduced. Experiments that operate germanium detectors with a very low energy threshold may benefit from the methods presented herein.