Title :
The research of characteristics of multichannel GaAs detectors
Author :
Nam, Irena F. ; Ryabkov, Sergey A. ; Tolbanov, Oleg P. ; Tyazhev, Anton V.
Abstract :
In this paper the results of multichannel GaAs detectors testing in integral mode are presented. It is shown that for x-ray quanta at the energy range 40-75 keV and exposure dose more than 1,5 mR the noise characteristics of the detectors are mostly depends on photon noise. It is experimentally proved that negative potential on irradiated contact and an inclination of detectors at a small angle to a direction of falling of radiation allow to increase sensitivity of detectors considerably.
Keywords :
image sensors; semiconductor counters; GaAs; X-ray quanta; detector inclination; electron volt energy 40 keV to 75 keV; exposure dose; integral mode testing; irradiated contact potential; multichannel detector; photon noise; Detectors; Educational institutions; Electron tubes; Gallium arsenide; Noise; Radiation effects; X-ray imaging; multichannel gallium arsenide detectors; x-ray and gamma radiation;
Conference_Titel :
Control and Communications (SIBCON), 2011 International Siberian Conference on
Conference_Location :
Krasnoyarsk
Print_ISBN :
978-1-4577-1069-8
DOI :
10.1109/SIBCON.2011.6072645
