Performance of undoped BGO crystals under extremely high dose conditions
Journal
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
409
Journal Issue
1-4
Pages
524-527
Date Issued
1997
Author(s)
Peng, K.C.
Abstract
We checked the performance of undoped BGO crystals under extremely high dose conditions (dosage up to 88 Mrad). The light outputs of the crystals drop by approx. 30% after receiving 10 Mrad of γ-ray dose but remain stable throughout the rest of the test. The self-recovery behavior of BGO under 20 Mrad has also been studied. The reduced variation in light output from pre-radiated BGOs, together with a fixed recovery limit, indicate that a pre-radiation process may be helpful to stabilized the BGO performance in a low dose environment.
Type
journal article