YALO(3)CE-AM LIGHT PULSERS AS A GAIN MONITOR FOR UNDOPED CSI DETECTORS IN A MAGNETIC-FIELD

Authors
KOBAYASHI M SHINKAWA T SATO T SUGIMOTO S KORZHIK MV FYODOROV AA KACHANOV VA
Citation
M. Kobayashi et al., YALO(3)CE-AM LIGHT PULSERS AS A GAIN MONITOR FOR UNDOPED CSI DETECTORS IN A MAGNETIC-FIELD, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 337(2-3), 1994, pp. 355-361
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
355 - 361
Database
ISI
SICI code
0168-9002(1994)337:2-3<355:YLPAAG>2.0.ZU;2-O
Abstract
YAlO3-Am pulsers show no degradation in their light output or resoluti on upon the application of a magnetic field, at least up to 10 kG. The decrease in the pulse height agrees with the change in the PMT gain c alibrated by an LED. When the pulser is mounted on the top face of a 3 0 cm long CsI far from a PMT with a UV filter inserted between the PMT and the CsI, the light output decreases by a factor of 1/4, compared with the case of being directly mounted on the PMT window. In the abov e configuration, the 5.49 MeV a of Am-241 gives about 550 photoelectro ns, which corresponds to a gamma-equivalent energy of 6.6 MeV. Finally , the pulsers were mass-produced with a FWHM resolution of 5.4% (avera ge) for the pulse height.