Study on the background automatic measurement method of uranium enrichment of on-line monitor at uranium enrichment plant

Qinglei LIANG; Bo XING; Bin YING; Jinghuai LI; Xuesheng LYU; Guorong LIU

doi:10.11889/j.0253-3219.2016.hjs.39.080502

您当前的位置：

首页 >

文章列表页 >

Study on the background automatic measurement method of uranium enrichment of on-line monitor at uranium enrichment plant

更新时间：2021-05-24

- Study on the background automatic measurement method of uranium enrichment of on-line monitor at uranium enrichment plant
- NUCLEAR TECHNIQUES Vol. 39, Issue 8, Article number: 080502(2016)
- 作者机构：
  
  1.中国原子能科学研究院北京 102413
  2.中核兰州铀浓缩有限公司兰州 730030
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2016.hjs.39.080502
  CLC： TL99
- Received：27 April 2016，
  
  Revised：06 June 2016，
  
  Published：2016-08
- 稿件说明：
移动端阅览
Qinglei LIANG, Bo XING, Bin YING, et al. Study on the background automatic measurement method of uranium enrichment of on-line monitor at uranium enrichment plant[J]. Nuclear techniques, 2016, 39(8): 080502
DOI：

Qinglei LIANG, Bo XING, Bin YING, et al. Study on the background automatic measurement method of uranium enrichment of on-line monitor at uranium enrichment plant[J]. Nuclear techniques, 2016, 39(8): 080502 DOI： 10.11889/j.0253-3219.2016.hjs.39.080502.

摘要

铀丰度在线监测仪是对铀浓缩厂工艺管道中UF

气体

235

U丰度进行在线监测的装置，本底是其核心关键技术指标，直接关系到丰度值的测量精度。原有本底测量方法需监测仪停止工作，人工将容器内的气体抽空进行测量。而本底自动测量方法通过改变测量容器内UF

气体的压力，用NaI（TI）探测器测量容器内UF

气体中

235

U发射的特征γ射线，利用压力传感器测量容器内UF

气体的压力值，最后对不同压力下的数据进行拟合获得监测仪的本底。实验结果表明，采用本底自动测量方法，监测仪铀丰度在线监测结果的相对标准偏差小于0.30%，与气体质谱计测量结果的最大相对偏差小于0.25%，表明该方法测量本底的准确度高；监测仪本底测量由软件自动完成，提高了监测仪的自动化程度，增强了监测仪的适用性。

Abstract

Background:

Uranium enrichment of on-line monitor (UEOM) is an equipment which is adopted to measure enrichment of UF

flowing through the processing pipes at uranium enrichment plant. Background is the key parameter which directly influences the measurement precision. Traditional background measurement methods need to stop work of monitor and vacuum container.

Purpose:

This study aims to build up a method to measure the background of monitor automatically.

Methods:

A NaI(T1) detector is used to measure the count rates ofγ-ray emitted from

235

U and a pressure sensor is used to measure the pressure of gases in the container

the background of monitor is obtained by fitting the data of different pressures.

Results:

The experimental results show that the relative standard de

via

tion is less than 0.30% and the maximum de

via

tion is less than 0.25% comparing with the data from mass spectrometry method.

Conclusion:

The new method shows a better precision compared with the traditional and it increases automation of the monitor greatly.

关键词

Keywords

references

K D Ianakiev , B D Boyer , J M Goda , . Advanced enrichment monitoring technology based on transmission measurements with an X-ray source and NaI(T1) spectrometer . IEEE Transactions on Nuclear Science , 2015 . 1207 - 1211 . DOI: 10.1109/TNS.2015.2424697 http://doi.org/10.1109/TNS.2015.2424697 .

K D Ianakiev , J M Goda , T R Hill , . Advanced technology for enrichment monitoring for gas centrifuge enrichment plants . Journal of Radionalytical & Nuclear Chemistry , 2009 . 282 ( 282 ): 657 - 661 . DOI: 10.1007/s10967-009-0268-3 http://doi.org/10.1007/s10967-009-0268-3 .

Uckan Taner , M L Jose , Powell Danny , . Taner Uckan, Jose M L, Danny Powell, et al. Blend down monitoring system fissile mass flow monitor implementation at the electro chemical plant[R]. Zelenogorsk, Russia:Oak Ridge National Laboratory, 2015 . Zelenogorsk, Russia:Oak Ridge National Laboratory , 2015 .

M L Lombardi , A Favalli , J M Goda , . Experimental determination of the thickness of aluminum cascade pipes in the presence of UF 6 gas during enrichment measurements . Nuclear Instruments and Methods in Physics Research A , 2012 . 672 ( 672 ): 69 - 74 . DOI: 10.1016/j.nima.2011.12.119 http://doi.org/10.1016/j.nima.2011.12.119 .

Kerr P L, Close D A, Johnson W S, et al. IAEA verification experiment at the portsmouth gaseous diffusion plant[R]. Los Alamos, USA:Report on the Cascade Header Enrichment Monitor, 1999

Lanakiev K D, Boyer B D, Favalli A, et al. On-line enrichment monitor for UF 6 GCEP[R]. Los Alamos, USA, 2012

吕学升 , 刘宏斌 , 刘国荣 , . UF 6 铀丰度在线监测技术 . 中国原子能科学研究院年报 , 2007 . ( 1 ): 320 - 321 . http://mall.cnki.net/magazine/Article/ZYKB200700335.htm .

Xuesheng LYU , Hongbin LIU , Guorong LIU , . Monitoring technology for UF 6 uranium enrichment . Annual Report of China Institute of Atomic Energy , 2007 . ( 1 ): 320 - 321 . http://mall.cnki.net/magazine/Article/ZYKB200700335.htm .

吕学升 , 刘国荣 , 刘宏斌 , . UF 6 铀丰度在线监测装置研制进展 , : 中国原子能科学研究院年报 2008 . 276 .

Xuesheng LYU , Guorong LIU , Hongbin LIU , . Research development in monitoring device for UF 6 uranium enrichment , : Annual Report of China Institute of Atomic Energy 2008 . 276 .

唐培家 . 放射性测量方法 , : 北京中国原子能出版社 , 2012 .

Peijia TANG . The radioactive measurement method , : Beijing Atomic Energy Press , 2012 .

吕学升 , 刘国荣 , 金惠民 , . 铀浓缩厂铀丰度在线监测装置研制 . 原子能科学技术 , 2013 . 47 ( 6 ): 1060 - 1061 . DOI: 10.7538/yzk.2013.4706.1060 http://doi.org/10.7538/yzk.2013.4706.1060 .

Xuesheng LYU , Guorong LIU , Huimin JIN , . Development of on-line uranium enrichment monitor of gaseous UF 6 for uranium enrichment plant . Atomic Energy Science and Technology , 2013 . 47 ( 6 ): 1060 - 1061 . DOI: 10.7538/yzk.2013.4706.1060 http://doi.org/10.7538/yzk.2013.4706.1060 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influence on background counts by the shielding body and structure of the room for a neutron source

The AMS facility at Xi’an AMS Centre

Event selection in experiments of (n,charged particle) reaction

M ethods of reducing X-rays background in super sensitive mini-cyclotron accelerator mass spectrometer

A new well logging neutron tube

Related Author

王炳林

郑金美

胡祥

秦培中

ZENG Xinmiao ZHOU Peng XU Ziyan QIN Peizhong HU Xiang ZHENG Jinmei WANG Binglin

周鹏

许自炎

ZHOU Weijian1

Related Institution

Beijing Radiation Application Research Center

北京市射线应用研究中心

Xi’an AMS Center, Xi’an 710052) 2

西安加速器质谱中心西安710052中国科学院地球环境研究所黄土与第四纪地质国家重点实验室西安710075西安交通大学西安

西安710052西安交通大学西安

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：881268 Visits Today：795

⁰