| 放射源~(60)Coγ射线的利用效率研究 |
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| 引用本文： | 陈明利,夏和舟,程薇,熊光权,廖涛,耿胜荣,鉏晓艳,史德芳,邱建辉,陈洪国. 放射源~(60)Coγ射线的利用效率研究[J]. 原子能科学技术, 2015, 49(11): 2076-2083. DOI: 10.7538/yzk.2015.49.11.2076 |
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| 作者姓名： | 陈明利 夏和舟 程薇 熊光权 廖涛 耿胜荣 鉏晓艳 史德芳 邱建辉 陈洪国 |
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| 作者单位： | 1.非动力核技术湖北省协同创新中心，湖北科技学院 核技术与化学生物学院，湖北 咸宁437100；2.湖北省农业科学院 农产品加工与核农技术研究所，湖北省农产品辐照工程技术中心，湖北 武汉430064 |
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| 摘 要： | 应用60 Coγ射线照射量率计算法分析比较了4种放射源排列方法和3种辐照操作方式的γ射线利用效率。结果表明,3种操作方式中,换层操作的效率最高,利用率为1.78,其次是分区操作方式,为1.45,源超界的不换层方式最低,为0.85。实行换层操作时,当吊篮高度在1.2m之内时以3层高度收敛排列法(各层间活度比为0.6∶1.8∶0.6)的60 Coγ射线利用率最高,为1.60;当吊篮高度为1.4 m时,3层轻度收敛排列法(0.9∶1.2∶0.9)的60 Coγ射线利用率最高,为1.72;当吊篮高度达到1.6 m时,3层均匀排列法(1∶1∶1)的射线利用率最高,为1.78。
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| 关 键 词： | 60Co')" >60Co, 放射源, 排列, 辐照, 利用率 |
Utilization Efficient of 60Co γ-ray Source |
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| CHEN Ming-li,XIA He-zhou,CHENG Wei,XIONG Guang-quan,LIAO Tao,GENG Sheng-rong,ZU Xiao-yan,SHI De-fang,QIU Jian-hui,CHEN Hong-guo. Utilization Efficient of 60Co γ-ray Source[J]. Atomic Energy Science and Technology, 2015, 49(11): 2076-2083. DOI: 10.7538/yzk.2015.49.11.2076 |
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| Authors: | CHEN Ming-li XIA He-zhou CHENG Wei XIONG Guang-quan LIAO Tao GENG Sheng-rong ZU Xiao-yan SHI De-fang QIU Jian-hui CHEN Hong-guo |
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| Affiliation: | 1.Non-power Nuclear Technology Collaborative Innovation Center, School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100, China; 2.Institute for Farm Products Processing and Nuclear-agricultural Technology, Hubei Academy of Agricultural Sciences, Hubei Engineering Research Center for Farm Products Irradiation, Wuhan 430064, China |
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| Abstract: | Four kinds of irradiation source arranging styles and three operating modes of 60Co γ-ray sources were studied. The effects of these ways during radiation processing on γ-ray utilization rate were compared and analyzed by the calculation method of 60Co γ-ray dosage rate. The results show that for these three operating modes, the γ-ray utilization rate of changing layer operation is the highest with 1.78, the partition operation is the second highest with 1.45, and the mode of irradiation source coverage and unchanging layer operation is the least with 0.85. During the implementation of changing layer operation, when the height of the basket within 1.2 m the γ-ray utilization rate of centralized arrangement (0.6∶1.8∶0.6) is the highest with 1.60. When the height of the basket is 1.4 m the γ-ray utilization rate of mild centralized arrangement (0.9∶1.2∶0.9) is the highest with 1.72. When the height of the basket is up to 1.6 m, the γ-ray utilization rate of the average arrangement is the highest up to 1.78. |
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| Keywords: | 60Co irradiation source arrangement irradiation utilization rate |
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