Radiation Damage to a Charge-sensitive Amplifier for Life-span Estimation

다국어 초록 (Multilingual Abstract)

Life-span estimates for charge sensitive amplifiers (CSA) for radiation damage effect are essential to obtain the reliability of a radiation detector system in its radiation environments because a CSA and a radiation sensor are exposed to radiation simultaneously. A hybrid-type CSA was fabricated with electronic components, which are easily obtainable from commercial markets, and its performance was tested. To estimate its life-span, we exposed the CSA to high-dose gamma-rays up to 10^6 Gy. Then, the performance degradations of the fabricated CSA were measured by using the equivalent noise charge (ENC) at various irradiation dose rates. In this paper, the feasibility and radiation damage to the CSA are discussed for life-span estimates.

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