New Micropattern Device Technology with Gas-Based Detectors for Nuclear Assay and Dark Matter Searches

该项目涉及开发用于气体时间投影室的微模式电荷读出技术，用于探测核衰变产物和假设的暗物质粒子。具体来说，该项目将致力于设计、建造和测试一个基于CERN技术的新设备，该设备包括一个带有新型微网格增益级的微气体读出平面。这将允许探测和跟踪α粒子和暗物质或其他能量阈值低于10 keV的衰变的核反冲，位置分辨率低于400微米。该计划需要建造一个演示探测器，包括气体系统和真空容器内的现场笼，最终部署在日本的一个地下站点。由此获得的数据将允许对该设备进行核分析应用和暗物质或其他罕见事件物理应用的评估。

The project concerns development of micropattern charge readout technology for use in gas Time Projection Chambers for the detection of nuclear decay products and hypothetical dark matter particles. Specifically the project will aim to design, build and test a new device based on CERN technology comprising a micromegas readout plane with new micro-mesh gain stage. This will allow detection and tracking of alpha particles and nuclear recoils from dark matter or other decays with energy threshold below 10 keV and position resolution of sub 400 micron. The programme requires construction of a demonstrator detector including gas system and field cage inside a vacuum vessel for eventual deployment in an underground site in Japan. Data from this will allow assessment of the device for both nuclear assay applications and dark matter or other rare event physics applications.