EXPLORATION OF GAAS STRUCTURES WITH PI-NU JUNCTION FOR COORDINATE SENSITIVE DETECTORS

Authors
CHMILL VB CHUNTONOV AV VOROBIEV AP KHLUDKOV SS KORETSKI AV POTAPOV AI TOLBANOV OP
Citation
Vb. Chmill et al., EXPLORATION OF GAAS STRUCTURES WITH PI-NU JUNCTION FOR COORDINATE SENSITIVE DETECTORS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 340(2), 1994, pp. 328-340
Citations number
21
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
340
Issue
2
Year of publication
1994
Pages
328 - 340
Database
ISI
SICI code
0168-9002(1994)340:2<328:EOGSWP>2.0.ZU;2-P
Abstract
The results of a systematic study of GaAs samples as the basis for the construction of radiation resistant coordinate sensitive detectors ar e presented. The technology to manufacture high resistivity GaAs layer s has been optimized. As a result we have produced samples with charge collection efficiency greater than 95% and with a time response of le ss than a few ns for minimum ionizing particle detection. The study of the radiation resistance of the GaAs samples has shown that their mai n characteristics degrade by less than by 20% at a neutron fluence of the order of 10(15) cm(-2) and do not worsen at a absorbed gamma-dose of 11 Mrad.