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正电子源为22Na,对能量为0.511MeV的正电子湮没辐射,我们用10×10×200BGO与Φ50×300NaI(Tl)在探测效率、能量分辨及温度性能等方面进行了比较。
The positron source is 22Na, and the positron annihilation radiation is 0.511MeV. We compared the detection efficiency, energy resolution and temperature performance with 10 × 10 × 200BGO and Φ50 × 300NaI (Tl).