The 29th International Nuclear Physics Conference (INPC 2025)

Performance test of 20 inch PMT for nuclear and particle physics detectors

Not scheduled

20m

Daejeon Convention Center (DCC)

Contributed Poster Presentation Neutrinos and Nuclei Poster Session

Speaker

Junkyo Oh (Chonnam National University)

Description

Large-diameter photomultiplier tubes (PMTs) have been widely used in large-scale neutrino experiments. This presentation discusses the characteristics of a 20-inch PMT featuring a box-and-line type dynode structure. Using a picosecond pulse laser, the charge and time response of the PMT was investigated in detail, and the uniformity of the photocathode position was tested. These results provide valuable insights for improving the reconstruction of neutrino energy and direction in such detectors.