TESTS OF PHOTOCATHODE QUANTUM EFFICIENCIES USING CHERENKOV RADIATION OF ELECTRONS FROM SR-90

Authors
CINDRO V KORPAR S KRIZAN P STANOVNIK A STARIC M SKRK D
Citation
V. Cindro et al., TESTS OF PHOTOCATHODE QUANTUM EFFICIENCIES USING CHERENKOV RADIATION OF ELECTRONS FROM SR-90, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 337(2-3), 1994, pp. 609-612
Citations number
12
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
337
Issue
2-3
Year of publication
1994
Pages
609 - 612
Database
ISI
SICI code
0168-9002(1994)337:2-3<609:TOPQEU>2.0.ZU;2-8
Abstract
Cherenkov photons emitted by electrons from a Sr-90 source in NaF and quartz radiators, have been measured with Philips photomultipliers XP2 020 and XP2020Q. On a logarithmic scale the pulse height distribution is linear, with the slope sensitive to the absolute Value of the photo cathode quantum efficiency integrated over wavelength. The agreement b etween measured and simulated pulse height distributions confirms the validity of the simulation procedure as well as the input data taken f rom the literature. For the XP2020Q photomultiplier our results suppor t the data of Dorenbos and de Haas, who found that the quantum efficie ncy below 250 nm is higher than stated by the manufacturer.