Application of laser ionization mass spectrometry for measurement of uranium isotope ratio in nuclear forensics and nuclear safeguards. (3rd August 2018)

• Record Type: Journal Article
• Authors: Wang, Fan; Zhang, Yan; Zhao, Yong-gang; Guo, Dong-fa; Xie, Sheng-kai; Tan, Jing; Li, Jin-ying; Lu, Jie
• Is Part Of: Measurement science & technology. Volume 29:Number 9(2018:Sep.)
• Publication Date: 2018-08-03
• Subjects: isotope ratio -- scanning electron microscopy -- micromanipulation -- laser ionization mass spectrometry -- uranium-bearing particles; Physical measurements -- Periodicals; Scientific apparatus and instruments -- Periodicals; Equipment and Supplies -- Periodicals; Science -- instrumentation -- Periodicals; Technology -- instrumentation -- Periodicals; Mesures physiques -- Périodiques; Physical measurements; Scientific apparatus and instruments; Periodicals; 502.87
• DOI: 10.1088/1361-6501/aad31e
• Languages: English
• ISSNs: 0957-0233

Abstract

Abstract: The uranium isotope ratio of both bulk material and individual particles provides important information for nuclear safeguards and nuclear forensics. As a rapid in situ analytical technique, laser ionization mass spectrometry (LIMS) was used to determine the uranium isotope ratio of solid bulk samples and single particles of U3 O8 . The results of measuring bulk samples showed excellent agreement with certified values. The deviation was less than 1% and the uncertainty of measurement was less than 5%. The uranium isotope ratio of single particles with diameters of about 50 μ m was measured by scanning electron microscopy (SEM) combined with LIMS. According to our research, LIMS has demonstrated promising uses in uranium isotope analysis in nuclear forensics and nuclear safeguards.