| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8175483 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2014 | 12 Pages |
Abstract
We present an indirect measurement of possible long term variations of the CsI quantum efficiency in solid state photocathodes in MWPC. This type of photon detectors has been used since 2001 in the Cherenkov Imaging detector RICH-1 of the COMPASS experiment at CERN SPS. Data from six years of COMPASS data taking are used to evaluate the mean number of detected photons per particle. The results do not indicate any severe CsI quantum efficiency ageing effect.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
M. Alexeev, R. Birsa, F. Bradamante, A. Bressan, S. Dalla Torre, V. Duic, M. Giorgi, B. Gobbo, S. Levorato, A. Martin, G. Sbrizzai, P. Schiavon, F. Sozzi, F. Tessarotto,