Jun 13 – 15, 2012
LAL Orsay
Europe/Paris timezone

A new design of large area MCP-PMT for the next generation neutrino experiment

Jun 13, 2012, 5:20 PM
20m
Amphithéâtre Pierre Lehmann (LAL Orsay)

Amphithéâtre Pierre Lehmann

LAL Orsay

Centre Scientifique d'Orsay - Bat 200 91898 Orsay cedex FRANCE
Oral presentation Vacuum photo-detectors

Speaker

Yuekun Heng (Institute of High Energy Physics)

Description

A new design of large area MCP-PMT for the next generation neutrino experiments is proposed. 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 4πviewing angle to enhance the efficiency of the photoelectron detection. The photoelectrons from the 4πphotocathode 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 photo-electronic simulation and the results of a 5 in. diameter prototype PMT. Future plans and prospects are discussed at the end.

Primary author

Prof. Yifang Wang (Institute of High Energy Physics,Chinese Academy of Sciences)

Co-authors

Prof. Jun Cao (Institute of High Energy Physics,Chinese Academy of Sciences) Sen Qian (Institute of High Energy Physics,Chinese Academy of Sciences) Shudong Liu (Institute of High Energy Physics,Chinese Academy of Sciences) Shulin Liu (Institute of High Energy Physics,Chinese Academy of Sciences) Tianchi Zhao (Institute of High Energy Physics,Chinese Academy of Sciences) Yuekun Heng (Institute of High Energy Physics)

Presentation materials