φ6 0 mm× 6 0 0μm硅 PIN半导体探测器是近年国内新研制的大面积高灵敏度探测器 ,用 10 13Bq级的 60 Coγ放射源测量了该类探测器的 60 Coγ灵敏度 ,用 CΓC脉冲辐射源 (约 0 .2 Me V)测量了该类探测器的时间响应。实验和理论计算表明 :该类探测器的 60 Coγ灵敏度约为 5 f C·cm2 / Me V。脉冲响应上升时间约为 10 ns,脉冲响应半高宽约为 35 ns。 The φ6 0 mm × 600 μm silicon PIN semiconductor detector is a newly developed large-area high-sensitivity detector in recent years. The 60 Co γ sensitivity of this detector is measured with a 10 13Bq-class 60 Coγ radioactive source. The C-C pulsed radiation source (About 0.2 MeV) measured the time response of this type of detector. Experimental and theoretical calculations show that the 60 Co γ sensitivity of this detector is about 5 f C · cm 2 / MeV. The pulse response rise time is about 10 ns, and the half-width of the pulse response is about 35 ns.