Author/Authors :
Wang، نويسنده , , Yifang and Qian، نويسنده , , Sen and Zhao، نويسنده , , Marco T. and Tian، نويسنده , , Jinshou and Li، نويسنده , , Huirui and Cao، نويسنده , , Jun and Xu، نويسنده , , Xiangyan and Wang، نويسنده , , Xiaoyun and Liu، نويسنده , , Shudong and Liu، نويسنده , , Hulin and Liu، نويسنده , , Shulin and Liu، نويسنده , , Delin and Heng، نويسنده , , Yuekun and Cao، نويسنده , , Xibin and Shentu، نويسنده , , Jun، نويسنده ,
Abstract :
This manuscript discusses a new design of large area MCP-PMT for the next generation neutrino experiments. The main motivation of the design is to improve the quantum efficiency (photo detection efficiency) of the PMT. Two sets of small MCP units, the transmission photocathode coated on the front hemisphere and the reflection photocathode coated on the rear hemisphere are assembled in the same glass envelope to form nearly 4π viewing angle to enhance the efficiency of the photoelectron detection. The photoelectrons from the 4π photocathode are collected and amplified by two sets of MCP units. Our goal is eventually to produce 20 in. diameter PMT following such an approach. We will report preliminary results of our ptoelectronic simulation and the results of a 5 in. diameter prototype PMT. Future plans and prospects are discussed at the end.
Keywords :
MCP , PMT , Large area photocathode , Neutrino experiment
