IRRADIATION EFFECTS ON AU-SI NUCLEAR-DETECTORS BY 10 MEV ALPHA-PARTICLES

Authors
OHBA K MITO A WAKAMATSU M ITO S SHOJI T HIRATATE Y
Citation
K. Ohba et al., IRRADIATION EFFECTS ON AU-SI NUCLEAR-DETECTORS BY 10 MEV ALPHA-PARTICLES, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 380(1-2), 1996, pp. 76-78
Citations number
5
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
380
Issue
1-2
Year of publication
1996
Pages
76 - 78
Database
ISI
SICI code
0168-9002(1996)380:1-2<76:IEOANB>2.0.ZU;2-I
Abstract
It is expected that nuclear detectors are exposed to radiation when th ey are used near accelerators. The purpose of this report is to study the radiation and annealing effects of Au-Si surface barrier nuclear d etectors, and to make clear deep levels of the defects produced by irr adiation. Irradiations are performed by 10 MeV alpha-particles with th e cyclotron. As a result of this experiment, characteristics of the ir radiated detectors show that reverse currents increase accordingly as reverse biases increase, and for Am-241 alpha-particle (5.48 MeV) coun ting response the energy spectra shift to the lower side compared with that of non-irradiated detectors. The deep levels for the defects are observed at E(c) -0.39 eV by DLTS measurements.