CASCADE, neutron detectors for highest count rates of cold and ultra-cold neutrons in combination with fast self-triggering readout electronics

CASCADE，中子探测器，与快速自触发读出电子设备相结合，可实现最高冷和超冷中子计数率

• 批准号: 167716579
• 负责人: Dr. Martin Klein
• 金额: --
• 依托单位: Physikalisches Institut
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/167716579?language=en
• 关键词: CASCADE; neutron; detectors; highest; count

The new projected fundamental physics experiments at modern cold and ultracold neutron(UCN) sources are based on a thousand-fold higher instantaneous neutron flux, which isessential to reach the prospected high precision. Experiments like the neutron lifetimeexperiment and the search for a neutron electric dipole moment (EDM) with more thanprojected 108 UCN stored require the counting of UCN released from the traps within a fewseconds only. Up today no detector for such high-count rates is available. The modularCASCADE detector system is designed for such high intensity neutron applications with highdemands on the dynamical range, contrast as well as background. The system is based on aconceptually innovative detector setup, which has proven its high rate capability also in otherfields as the high-energy physics. It is only limited by the bandwidth of readout electronicsavailable up today. Goal of this applied research project is the development of a beam monitor detector adaptedto the planned PERC instrument and a position sensitive detector adapted to the experiments with ultracold neutrons based on a new data acquisition system, which is morethan 10 times faster to be able to process detection rates up to 100 MHz.

新计划的现代冷和超冷中子（UCN）源基础物理实验是基于高出千倍的瞬时中子通量，这对于达到预期的高精度至关重要。中子寿命实验和寻找存储超过预计 108 UCN 的中子电偶极矩 (EDM) 等实验需要在几秒钟内对从陷阱中释放的 UCN 进行计数。迄今为止，还没有能够达到如此高计数率的探测器。模块化 CASCADE 探测器系统专为此类对动态范围、对比度和背景有很高要求的高强度中子应用而设计。该系统基于概念上创新的探测器设置，该设置已在高能物理等其他领域证明了其高速率能力。它仅受当今可用的读出电子设备带宽的限制。该应用研究项目的目标是基于新的数据采集系统开发适用于计划中的 PERC 仪器的束流监测探测器和适用于超冷中子实验的位置敏感探测器，速度提高 10 倍以上，能够处理高达 100 MHz 的探测速率。