A cryogenic system for measuring in the VUV range the absolute quantum efficiency of light detectors with large sensitive area

被引：0

作者：

Raselli, G. L. ^{[1
]}

Boffelli, F. ^{[1
,2
]}

Copello, S. ^{[1
]}

de Vecchi, C. ^{[1
]}

Menegolli, A. ^{[1
,2
]}

Prata, M. C. ^{[1
]}

Rossella, M. ^{[1
]}

Rossini, R. ^{[1
,2
]}

Scagliotti, C. ^{[1
]}

机构：

[1] INFN Sez Pavia, Via A Bassi 6, I-27100 Pavia, Italy

[2] Univ Pavia, Dept Phys, Via A Bassi 6, I-27100 Pavia, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2024年 / 1068卷

关键词：

Photomultiplier; Photo detection; Liquid argon; Quantum efficiency;

D O I：

10.1016/j.nima.2024.169807

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We developed a system to measure changes in PMT photocathode's behavior from room to cryogenic temperatures and to determine the absolute quantum efficiency (Q.E.) by comparing the photocathode current with that of a calibrated photodiode. Preliminary test results on the 8-inch Hamamatsu R5912-MOD PMT coated with approximate to 200 mu g/cm(2) of tetraphenyl butadiene do not show significant variations in Q.E. at cryogenic temperatures with respect to room temperature and are in agreement with other measurements.

引用

页数：2

共 4 条

[1] Characterization of large area PMTs at cryogenic temperature for rare event physics experiments [J].