Electric-field dependence of dark noise in a photomultiplier tube

Dec 21, 2020, 4:25 PM
30m
10 (Virtual)

10

Virtual

Board: 32
ポスター発表(若手セッション) 若手セッション

Speaker

Mr Yuto Maekawa (Keio Univ.)

Description

In neutrino experiments, photomultiplier tubes (PMTs) in water or liquid scintillators are frequently used to measure a signal of light. Dark pulses of the PMTs are an important background which affects low energy measurements. It is known that the dark pulse rate depends on temperature and magnitude of the electric-field around the photo cathode. To find optimal settings in the actual environment, I measure these dependences and represent the dark rate with a theoretical model.

Primary author

Mr Yuto Maekawa (Keio Univ.)

Co-author

Prof. Yasuhiro NISHIMURA (Keio University)

Presentation materials