Experimental Results from γ-irradiated GaAs Crystals Grown with Different Techniques

Author:

Bencivelli W.,Bertolucci E.,Bottigli U.,Cavallini A.,D'Auria S.,Via C. Da,Papa C. Del,Fantacci M.E.,Rosso V.,Stefanini A.,Stefanini G.

Abstract

ABSTRACTGallium Arsenide crystals are among the most efficient detectors of X-rays at room temperature. Different GaAs crystals have been irradiated with photons from radioactive sources, to compare their response in view of a possible application for Digital Radiology. The detectors have been obtained by various manufacturers and with different techniques (LEC and LPE crystals). Experimental results include I-V curves, charge collection efficiency and detection efficiency as a function of bias. A comparison is made with a simulation program.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

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