MICE PID仪器

摘要：

国际μ子电离冷却实验（MICE）将对μ子束的电离冷却进行系统的研究。由于发射度测量将在逐粒子的基础上进行，因此需要复杂的束流仪器来测量粒子坐标和定时与RF。一个PID系统的基础上的三个时间的飞行站，两个气凝胶切伦科夫探测器和KLOE类量热计已建成，以保持光束污染（$e, π$）远低于1%。MICE飞行时间系统将在由于高粒子率、边缘磁场和来自RF暗电流的电子背景而造成的恶劣环境中以优于每平面70 ps的分辨率测量定时。

英文摘要：

The international Muon Ionization Cooling Experiment (MICE) will carry out a systematic investigation of ionization cooling of a muon beam. As the emittance measurement will be done on a particle-by-particle basis, sophisticated beam instrumentation is needed to measure particle coordinates and timing vs RF. A PID system based on three time-of-flight stations, two Aerogel Cerenkov detectors and a KLOE-like calorimeter has been constructed in order to keep beam contamination ($e, π$) well below 1%. The MICE time-of-flight system will measure timing with a resolution better than 70 ps per plane, in a harsh environment due to high particle rates, fringe magnetic fields and electron backgrounds from RF dark current.

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