دورية أكاديمية
Short-lived noble gas effluent trends from a research reactor.
| العنوان: | Short-lived noble gas effluent trends from a research reactor. |
|---|---|
| المؤلفون: | Dion MP; Oak Ridge National Laboratory, Oak Ridge, 37831, TN, USA. Electronic address: dion@jlab.org., Conant AJ; Oak Ridge National Laboratory, Oak Ridge, 37831, TN, USA. Electronic address: conantaj@ornl.gov., Dayman KJ; Oak Ridge National Laboratory, Oak Ridge, 37831, TN, USA. Electronic address: daymankj@ornl.gov., Glasgow D; Oak Ridge National Laboratory, Oak Ridge, 37831, TN, USA. Electronic address: glasgowdc@ornl.gov., Chandler D; Oak Ridge National Laboratory, Oak Ridge, 37831, TN, USA. Electronic address: chandlerd@ornl.gov. |
| المصدر: | Journal of environmental radioactivity [J Environ Radioact] 2023 Dec; Vol. 270, pp. 107281. Date of Electronic Publication: 2023 Aug 29. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 8508119 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1700 (Electronic) Linking ISSN: 0265931X NLM ISO Abbreviation: J Environ Radioact Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Barking, Essex : Elsevier Applied Science Publishers, |
| مواضيع طبية MeSH: | Air Pollutants, Radioactive*/analysis , Radiation Monitoring*, Xenon Radioisotopes/analysis ; Noble Gases ; Radioisotopes |
| مستخلص: | An understanding of anthropogenic sources of radioactive noble gases in the atmosphere is needed to enhance the discrimination ability of the International Monitoring System's sensors. These sources include commercial and research nuclear reactors and medical isotope production facilities. While abiding by local environmental ordinances these facilities all emit noble gas radioisotopes through normal operation. This research presents measurements and analysis of noble gas isotopes ( 41 Ar, 135 Xe, 135m Xe, 137 Xe, 138 Xe, 87 Kr, 88 Kr, and 89 Kr) made directly at the stack of the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory. The Xe and Kr noble gases are concurrently observed with 41 Ar, a neutron activation product, when the reactor is operational. The magnitude of the Xe and Kr noble gases released is not constant over the HFIR cycle, but they temporally match the 41 Ar trend. An isotope activity ratio analysis of these shorter lived isotopes combined with the observation of the cycle's temporal trend helps understand the noble gas production mechanism at the HFIR. Isotopes with short half-lives are not useful for long-range environmental monitoring. However, these measurements could potentially be combined with atmospheric modeling to predict the background source term of the longer-lived Xe ratios at a monitoring station. Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2023 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Nuclear monitoring; Radioxenon; Research reactor |
| المشرفين على المادة: | 0 (Air Pollutants, Radioactive) 0 (Xenon Radioisotopes) 0 (Noble Gases) 0 (Radioisotopes) |
| تواريخ الأحداث: | Date Created: 20230831 Date Completed: 20231120 Latest Revision: 20231120 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1016/j.jenvrad.2023.107281 |
| PMID: | 37651771 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1700 |
|---|---|
| DOI: | 10.1016/j.jenvrad.2023.107281 |