论文标题
火炬项目的状态
Status of the TORCH Project
论文作者
论文摘要
火炬飞行时间探测器将在10 m的飞行距离内提供2-10 GEV/C动量之间的粒子识别，并设计用于大区域覆盖率，最大为30 m^2。通过测量在10 mm厚度的合成融合硅胶散热器板中产生的Cherenkov光子的到达时间，可以预期每个入射粒子的15 ps飞行时间分辨率。工业伙伴已经开发了定制的微通道板光电倍增管（MCP-PMT）光子检测器，其光电探测器的53 x 53 mm^2活性区域具有64 x 64粒度。提出了使用小型火炬演示器和半长度火炬模块的测试梁研究。每个光子的所需定时分辨率为70 ps。
The TORCH time-of-flight detector will provide particle identification between 2-10 GeV/c momentum over a flight distance of 10 m, and is designed for large-area coverage, up to 30 m^2. A 15 ps time-of-flight resolution per incident particle is anticipated by measuring the arrival times from Cherenkov photons produced in a synthetic fused silica radiator plate of 10 mm thickness. Customised Micro-Channel Plate Photomultiplier Tube (MCP-PMT) photon detectors of 53 x 53 mm^2 active area with a 64 x 64 granularity have been developed with industrial partners. Test-beam studies using both a small-scale TORCH demonstrator and a half-length TORCH module are presented. The desired timing resolution of 70 ps per single photon is close to being achieved.
