In the framework of the development of a digital radiography/autoradiography system using solid state detectors, we studied the performance of GaAs pixellated detectors regarding noise level and detection behavior of interpixel space. The detector is a 64x64 pixel array, 200 um thick GaAs, 150 um contact size and 20 um interpixel space. Studies involve I-V curves, detector behavior for long-period biasing, noise as a function of temperature, and possible detection efficiency loss due to interpixel dead spaces.
Noise and interpixel dead space studies of GaAs pixellated detectors / L., Abate; Bertolucci, Ennio; Conti, Maurizio; Mettivier, Giovanni; Montesi, MARIA CRISTINA; Russo, Paolo. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 458:(2001), pp. 164-168. [10.1016/S0168-9002(00)00927-X]
Noise and interpixel dead space studies of GaAs pixellated detectors
BERTOLUCCI, ENNIO;CONTI, MAURIZIO;METTIVIER, GIOVANNI;MONTESI, MARIA CRISTINA;RUSSO, PAOLO
2001
Abstract
In the framework of the development of a digital radiography/autoradiography system using solid state detectors, we studied the performance of GaAs pixellated detectors regarding noise level and detection behavior of interpixel space. The detector is a 64x64 pixel array, 200 um thick GaAs, 150 um contact size and 20 um interpixel space. Studies involve I-V curves, detector behavior for long-period biasing, noise as a function of temperature, and possible detection efficiency loss due to interpixel dead spaces.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
