浏览全部资源
扫码关注微信
废物桶活度测量的半层析γ扫描技术
Semi-tomographic gamma scanning technique for activity detection of radioactive waste drum
- 核技术 2018年41卷第5期 文章编号：050501
- 作者机构：
上海交通大学 机械与动力工程学院 上海 200240
- 作者简介：
[ "饶开源, 男, 1992年出生, 2015年毕业于上海交通大学, 现为硕士研究生, 研究领域为辐射测量与防护", "RAO Kaiyuan, male, born in 1992, graduated from Shanghai Jiaotong University in 2015, master student, focusing on radiation detection and protection" ]
顾卫国, E-mail:guweiguo@sjtu.edu.cn GU Weiguo, E-mail:guweiguo@sjtu.edu.cn
- 基金信息：高等学校博士学科点专项科研基金(20120073130009)
DOI：10.11889/j.0253-3219.2018.hjs.41.050501
中图分类号： TL81收稿日期：2017-11-10，
修回日期：2017-11-27，
纸质出版日期：2018-05-10
- 稿件说明：
移动端阅览
饶开源, 顾卫国, 唐新海, 等. 废物桶活度测量的半层析γ扫描技术[J]. 核技术, 2018,41(5):050501
Kaiyuan RAO, Weiguo GU, Xinhai TANG, et al. Semi-tomographic gamma scanning technique for activity detection of radioactive waste drum[J]. Nuclear techniques, 2018, 41(5): 050501
饶开源, 顾卫国, 唐新海, 等. 废物桶活度测量的半层析γ扫描技术[J]. 核技术, 2018,41(5):050501 DOI： 10.11889/j.0253-3219.2018.hjs.41.050501.
Kaiyuan RAO, Weiguo GU, Xinhai TANG, et al. Semi-tomographic gamma scanning technique for activity detection of radioactive waste drum[J]. Nuclear techniques, 2018, 41(5): 050501 DOI： 10.11889/j.0253-3219.2018.hjs.41.050501.
摘要
半层析γ扫描技术（Semi-tomographic Gamma Scanning，STGS）在综合分段γ扫描技术（Segmented Gamma Scanning，SGS）和层析γ扫描技术（Tomographic Gamma Scanning，TGS）的基础上，对其测量方法和重建算法进行了改进。用STGS方法测量核电厂废物桶活度是在SGS基础上，将废物桶轴向分段的每层进一步划分为数个环状体素，然后采用拓扑层析方法进行活度重建。针对包含三种放射性核素的400L超压废物桶，蒙特卡罗方法被用于验证STGS方法的正确性。结果显示：SGS对高密度400L废物桶的最大测量误差超过100%，而STGS的重建误差和统计偏差可控制在50%以内，且往往是SGS方法的二分之一或更低。而测量时间显著短于TGS。从整体上讲，STGS是一种平衡了精度和测量时间，测量高密度400L废物桶的有效方法。
Abstract
Background
2
Segmented gamma scanning (SGS) and tomographic gamma scanning (TGS) are the normal standard non-destructive assay (NDA) techniques for low intermediate waste drum detection.
Purpose
2
This study aims to evaluate the performance of semi-tomographic gamma scanning (STGS) for waste drum of nuclear power plant (NPP).
Methods
2
The principles of SGS and TGS are synthesized in the STGS method and the implementation of its algorithm
each segment of the waste drum is divided into annual voxels and tomography is used in the radiation reconstruction. The accuracy of STGS is verified by MCNP calculation for the 400L standard waste drums which contains three types of nuclides. The cases of point source and uniform materials are employed for comparison.
Results
2
The experimental results show that the reconstruction error and statistical bias for STGS can be controlled lower than 50% and is always half or less of SGS while maximum error of SGS is over 100%. The detection time of STGS is obviously shorter than TGS.
Conclusion
2
STGS can keep the balance between accuracy and detection time
it is an effective method for non-destructive assay of 400L radioactive waste drums with high density.
关键词
Keywords
references
Kirkpatrick J M, Leblanc P J, Nakazawa D, et al. A mobile automated tomographic gamma scanning system[C]. Waste Management Conference, 2013.
T H Anh , N D Thanh , T Q Dung . Evaluation of performance of a new gamma technique for assay of radioactive waste . Annals of Nuclear Energy , 2005 . 32 ( 13 ): 1516 - 1523 . DOI: 10.1016/j.anucene.2005.03.010 http://doi.org/10.1016/j.anucene.2005.03.010 .
C Liu , D Z Wang , Y F Bai , . An improved segmented gamma scanning for radioactive waste drums . Nuclear Science and Techniques , 2010 . 21 ( 4 ): 204 - 208 . https://www.researchgate.net/publication/298895132_An_improved_segmented_gamma_scanning_for_radioactive_waste_drums .
T Krings , E Mauerhofer . Reconstruction of the activity of point sources for the accurate characterization of nuclear waste drums by segmented gamma scanning . Applied Radiation & Isotopes Including Data Instrumentation & Methods for Use in Agriculture Industry & Medicine , 2011 . 69 ( 6 ): 880 - 889 . DOI: 10.1016/j.apradiso.2011.02.009 http://doi.org/10.1016/j.apradiso.2011.02.009 .
T Q Dung , P T Phuc , T T Son , . Evaluation of combination of different methods for determination of activity of radioactive waste in sealed drum . Journal of Fluorescence , 2013 . 21 ( 21 ): 1831 - 1833 . http://agris.fao.org/agris-search/export!exportTopEndNoteXML.action?agrovocString=Isotope+labelling&onlyFullText=false .
N Qian , W G Gu , C Wang , . Research of two-measurement position segmented gamma scanning system . Atomic Energy Science & Technology , 2015 . 49 ( 1 ): 147 - 153 .
W G Gu , C Liu , N Qian , . Study on detection simplification of tomographic gamma scanning using dynamic grids applied in the emission reconstruction . Annals of Nuclear Energy , 2013 . 58 ( 8 ): 113 - 123 . DOI: 10.1016/j.anucene.2013.02.031 http://doi.org/10.1016/j.anucene.2013.02.031 .
顾 卫国 , 王 德忠 , 刘 诚 , . 放射性废物桶层析γ扫描动网格重建技术分析 . 上海交通大学学报 , 2013 . 47 ( 4 ): 505 - 512 . http://xuebao.sjtu.edu.cn/CN/abstract/abstract9857.shtml .
Weiguo GU , Dezhong WANG , Cheng LIU , . Analysis for tomographic gamma scanning using dynamic grids of radioactive waste drum . Journal of Shanghai Jiaotong University , 2013 . 47 ( 4 ): 505 - 512 . http://xuebao.sjtu.edu.cn/CN/abstract/abstract9857.shtml .
W G Gu , K Y Rao , D Z Wang , . Semi-tomographic gamma scanning technique for non-destructive assay of radioactive waste drums . IEEE Transactions on Nuclear Science , 2016 . 63 ( 6 ): 2793 - 2800 . DOI: 10.1109/tns.2016.2614964 http://doi.org/10.1109/tns.2016.2614964 .
钱 雅兰 , 王 德忠 , 顾 卫国 , . 核废物桶检测中探测效率的数值方法 . 上海交通大学学报 , 2017 . 51 ( 1 ): 1 - 5 . http://xuebao.sjtu.edu.cn/CN/abstract/abstract10794.shtml .
Yalan QIAN , Dezhong WANG , Weiguo GU , . Numerical method for detection efficiency in assay of nuclear waste drum . Journal of Shanghai Jiaotong University , 2017 . 51 ( 1 ): 1 - 5 . http://xuebao.sjtu.edu.cn/CN/abstract/abstract10794.shtml .
0
浏览量
24
下载量
3
CSCD
- 网络PDF下载
- Meta-XML下载
- BibTeX下载
- Endnote下载
- RefMan 下载
- NoteExpress下载
- NoteFirst下载
关联资源
相关文章
相关作者
相关机构
AI问答- 地址：上海市嘉罗公路2019号 邮编：201800
- 联系电话：021-39194977 Email：LHB@sinap.ac.cn
- 技术支持由北京北大方正电子有限公司提供 沪ICP备05005479号-1
京公网安备11010802024621 - 本系统建议在Chrome、 IE9+ 以上版本浏览器阅读本站内容，360浏览器请切换至极速模式
- Cookies帮助我们提供服务并提供个性化体验。使用本网站，即表示您同意我们使用Cookies
- 总访问量：880473
