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中文摘要：
通过分析CdZnTe半导体射线探测器的性能，并考虑到电荷灵敏放大器的噪声特性，设计了用于便携式探测器中的低噪声小尺寸电荷灵敏放大器。在常温下，3mm×7mm×3mm的CdZnTe探测器与小尺寸电荷灵敏前置放大器探测系统对于^241Amd的59．5keVγ射线的能量分辨率为4．38％。
英文摘要：
A new low-noise charge-sensitive rnicropreamplifier used in portable detecting instrument is designed through analysing the performance of CdZnTe serniconducte detectors and considering the noise character of the charge-sensitive amplifier. At normal temperature, energy resolution of the detecting system with a 3mm×7mm×3mm CdZnTe detector and the charge-sensitive micropreamplifier is 4.38% to the 59.5keV 241Am γ source.
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