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中国科学院上海原子核研究所
纸质出版日期:1991-01-01
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[1]黄文达,顾加辉,石双惠,刘静怡,田家祺,李燕,施德堂.BaF_2晶体镀对三联苯前后的性能研究[J].核技术,1991(01):41-43.
Huang Wenda Gu Jiahui Shi Shuarg ui Liu JingyiTian Jiaqi Li Yan Shi Detang. Property of BaF2 scintillator coated with P-terphenyl[J]. Nuclear techniques, 1991, (1): 41-43.
本文报道了两块φ30×20BaF
2
晶体镀1.5mg/cm
2
对三联苯波长转换膜前后能量分辨率和时间分辨率的变化。采用RCA8850光电倍增管时
对三联苯能使能量分辨率明显变好;采用EMI9818 QKB光电倍增管时
能量分辨率稍变差。文中讨论了其原因。测得两块φ20×10BaF-2晶体镀1.6mg/cm
2
对三联苯后对
60
Coγ射线的时间分辨率为502ps。
Properties of BaF2 crystals coated with or without P-terphenyl (a wavelength shifter) were studied. When crystals were mounted on the RCA 8850 PMTs
the use of the snifter resulted in a better energy resolution
but for EMI 9818 QKB PMTs
a worse result was obtained. The reason for these results was discussed. Time resolution measured for 60Co γ rays was 502 ps when two φ20×10 BaF2 crystals coated with 1.6 mg/cm2 P-terphenyl were coupled to RCA 8850 PMTs.
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