Quantum efficiency measurement system for large area CsI photodetectors

A proximity focusing freon/CsI RICH detector has been built for kaon physics at Thomas Jefferson National Accelerator Facility (TJNAF or Jefferson Lab), Hall A. The Cherenkov photons are detected by a UV photosensitive CsI film which has been obtained by vacuum evaporation. A dedicated evaporation f...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2003-04, Vol.502 (1), p.251-255
Main Authors: Cusanno, F., Cisbani, E., Colilli, S., Crateri, R., Fratoni, R., Frullani, S., Garibaldi, F., Giuliani, F., Gricia, M., Lucentini, M., Mostarda, A., Santavenere, F., Veneroni, P., Breuer, H., Iodice, M., Urciuoli, G.M., De Cataldo, G., De Leo, R., Lagamba, L., Braem, A.
Format: Article
Language:English
Subjects:
CsI
Photocathode
Quantum efficiency measurements
RICH detector
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A proximity focusing freon/CsI RICH detector has been built for kaon physics at Thomas Jefferson National Accelerator Facility (TJNAF or Jefferson Lab), Hall A. The Cherenkov photons are detected by a UV photosensitive CsI film which has been obtained by vacuum evaporation. A dedicated evaporation facility for large area photocathodes has been built for this task. A measuring system has been built to allow the evaluation of the absolute quantum efficiency (QE) just after the evaporation. The evaporation facility is described here, as well as the quantum efficiency measurement device. Results of the QE on-line measurements, for the first time on large area photocathodes, are reported.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(03)00283-3