| SPRR-300反应堆中子照相装置准直系统的研制 |
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| 引用本文： | 唐彬,张松宝,代君龙,王云,胡志勇.SPRR-300反应堆中子照相装置准直系统的研制[J].核电子学与探测技术,2005,25(6):718-721. |
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| 作者姓名： | 唐彬 张松宝 代君龙 王云 胡志勇 |
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| 作者单位： | 中国工程物理研究院核物理与化学研究所,四川绵阳919信箱211分箱,621900 |
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| 摘 要： | 准直器是中子照相装置的关键组件之一．利用石墨为慢化剂．铋为γ过滤器。采用光阑直径、准直器长度、石墨塞长度可调以实现准直比和镉比的大幅度调节．钢结构水箱快门完成了SPRR—300准直系统设计。实验结果显示设计是合理的．成像质量达ASTM-86达二级以上．能满足不同成像技术和不同样品的中子照相需求。
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| 关 键 词： | 反应堆 中子照相 准直 |
| 文章编号： | 0258-0934(2005)06-0718-03 |
| 修稿时间： | 2004年6月10日 |
Development of collimator system of neutron radiography facility in SPRR-300 reactor |
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| TANG Bin,ZHANG Song-bao,Dai Jun-long,WANG Yun,HU Zhi-yong.Development of collimator system of neutron radiography facility in SPRR-300 reactor[J].Nuclear Electronics & Detection Technology,2005,25(6):718-721. |
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| Authors: | TANG Bin ZHANG Song-bao Dai Jun-long WANG Yun HU Zhi-yong |
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| Abstract: | A Collimator is the key assemble of neutron radiography facility. The collimator system of neutron radiography facility in the SPRR-300 reactor has been developed by the use of the graphite plug as a moderator, the bismuth block as a gamma filter, and its diaphragm diameter, its length of the col limator and the graphite plug can be adjusted to change collimator ratio and Cd-ratio, and a water tank shutter is used. The experiments shows that the design of the collimator is reasonable, and its image quality can reach more than the second grade of ASTM-86, and it satisfies neutron radiography of var ied samples and varied imaging technology. |
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| Keywords: | Dreactor neutron radiography collimation |
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