MuSIC施設でのミューオン素粒子物理学の研究

本研究的目的是在大阪大学核子物理研究中心（MuSIC）为搜寻μ- bbb100电子粒子而设计时间投射室（TPC）。今年的计划是：建造一台TPC原型机；电子读数测试；以及放射源、宇宙射线和光束测试的测量。建造原型TPC：所有原型所需的部件都已经购买。5块GEM标准箔购自CERN （REPIC进口）。箔片的有效面积为100x100mm2，孔外径为70微米，间距为140微米。腔室部件由REPIC制造。GEM阶段之间的距离为2毫米，最大漂移距离为10毫米。由于零件交付较晚，组装尚未完成，我正忙于另一个实验（PSI的AlCap，这是我毕业论文所需的工作）。-电子读数和其他测量的测试：由于组装延迟，尚未进行任何测试或测量。

The purpose of this research is R&D for a Time Projection Chamber (TPC) for a search for μ->eee at MuSIC (Research Center for Nuclear Physics, Osaka University).The plan for this year was : building a prototype TPC ; testing of electronics readout ; and measurements with radioactive sources, cosmic rays and beam tests.-Building the prototype TPC :All necessary parts for the prototype have been bought. Five standard GEM foils are bought from CERN (imported by REPIC). The foils have active area of 100x100 mm2, holes outer diameter of 70 micron and pitch of 140 micron. Chamber parts are made by REPIC. The distance between GEM stages are 2 mm, maximum drift distance is 10 mm.The assembling has not been done yet since the parts were delivered quite late, and I was busy with another experiment (AlCap at PSI, this is the work needed for my graduate thesis).-Testing of electronics readout and other measurements :As a consequence of the delayed assembling, no test or measurement has been done yet.