摘要
用上海硅酸盐所提供的φ７６ｍｍ×１００ｍｍＢＧＯ晶体制作γ闪烁探测器，用来探测中能重离子核反应中放出的１０－１００ＭｅＶ的γ射线。该探测器对＾１３７Ｃｓ的０．６６１ＭｅＶγ射线的能量分辨率为１４．２％。在加速器上用若干（Ｐ，γ）反应产生的单能光子测试探测的能量响应，通过细致的数据拟合得到该探测器在２０ＭｅＶ以下能区的能量响应和全能峰能量分辨率。对１７．６５ＭｅＶγ射线，探测器的能量分辨率为４．１％
A 76 mm-diameter by 100 mm-long BGO scintillation detector is assembled to detect the highenergy gamma-rays produced from intermediate energetic heavy-ion nuclear reaction. The energyresponse of the detector is studied in the incident gamma-rays energy range of 0.661 MeV to17.65 MeV, the monoenergetic gamma-rays are generated by radiative sources and several lowenergy (p, γ) resonant nuclear reactions. The response function is obtained by delicate datefitting. The full energy peak energy resolution is 14.2% at 0.661 MeV and 4.1% at 17.65MeV, respectively. One analyzing method of the energy spectra of high energy gamma-rays is al-so discussed in the paper.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1993年第6期512-518,共7页
Atomic Energy Science and Technology
基金
国家教委青年教师基金
国家自然科学基金
关键词
BGO
闪烁探测器
能量响应
中能
BGO scintillation detector
Energy response
Secondary electron
Bremsstrahlung
Non-linear fit
