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HIGH-LEVEL (14)C CONTAMINATION AND RECOVERY AT XI'AN AMS CENTER
Zhou, WJ (Zhou, Weijian)[1,2,3]; Wu, SG (Wu, Shugang)[1,4]; Lange, TE (Lange, Todd E.)[5]; Lu, XF (Lu, Xuefeng)[1,2]; Cheng, P (Cheng, Peng)[1,2]; Xiong, XH (Xiong, Xiaohu)[1,2,4]; Cruz, RJ (Cruz, Richard J.)[5]; Liu, Q (Liu, Qi)[1,2,4]; Fu, YC (Fu, Yunchong)[1,2]; Zhao, WN (Zhao, Wennian)[2,3]
2012-09-30
Source PublicationRADIOCARBON
Volume54Issue:2Pages:187-193
Subtype期刊论文
Abstract

A sample with a radiocarbon concentration estimated to be greater than 10(5) times Modern was inadvertently graphitized and measured in the Xi'an AMS system last year. Both the sample preparation lines and the ion source system were seriously contaminated and a series of cleaning procedures were carried out to remove the contamination from them. After repeated and careful cleaning as well as continuous flushing with dead CO(2) gas, both systems have recovered from the contamination event. The machine background is back to 2.0 x 10(-16) and the chemical blank is beyond 50 kyr.

Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10132
Collection加速器质谱中心
Corresponding AuthorZhou, WJ (Zhou, Weijian)[1,2,3]
Affiliation1.State Key Lab Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an710075, China;
2.Shaanxi Province Key Laboratory of Accelerator Mass Spectrometry Technology and Application, Institute of Earth Environment, CAS, Xi’an 710043, China;
3.Xi’an Jiaotong University, Xi’an 710049, China;
4.Graduate School of the Chinese Academy of Sciences, Beijing 100049, China;
5.NSF-Arizona AMS Facility, Physics Department, Building #81, University of Arizona, Tucson, Arizona 85721, USA
Recommended Citation
GB/T 7714
Zhou, WJ ,Wu, SG ,Lange, TE ,et al. HIGH-LEVEL (14)C CONTAMINATION AND RECOVERY AT XI'AN AMS CENTER[J]. RADIOCARBON,2012,54(2):187-193.
APA Zhou, WJ .,Wu, SG .,Lange, TE .,Lu, XF .,Cheng, P .,...&Zhao, WN .(2012).HIGH-LEVEL (14)C CONTAMINATION AND RECOVERY AT XI'AN AMS CENTER.RADIOCARBON,54(2),187-193.
MLA Zhou, WJ ,et al."HIGH-LEVEL (14)C CONTAMINATION AND RECOVERY AT XI'AN AMS CENTER".RADIOCARBON 54.2(2012):187-193.
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