Setting a Limit on Anthropogenic Sources of Atmospheric 81Kr through Atom Trap Trace Analysis
We place a 2.5% limit on the anthropogenic contribution to the modern abundance of 81Kr/Kr in the atmosphere at the 90% confidence level. Due to its simple production and transport in the terrestrial environment, 81Kr (halflife = 230,000 yr) is an ideal tracer for old water and ice with mean residen...
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| creator | Zappala, J. C Bailey, K Jiang, W Micklich, B Mueller, P O'Connor, T. P Purtschert, R |
| description | We place a 2.5% limit on the anthropogenic contribution to the modern
abundance of 81Kr/Kr in the atmosphere at the 90% confidence level. Due to its
simple production and transport in the terrestrial environment, 81Kr (halflife
= 230,000 yr) is an ideal tracer for old water and ice with mean residence
times in the range of 10^5-10^6 years. In recent years, 81Kr-dating has been
made available to the earth science community thanks to the development of Atom
Trap Trace Analysis (ATTA), a laser-based atom counting technique. Further
upgrades and improvements to the ATTA technique now allow us to demonstrate
81Kr/Kr measurements with relative uncertainties of 1% and place this new limit
on anthropogenic 81Kr. As a result of this limit, we have removed a potential
systematic constraint for 81Kr-dating. |
| doi_str_mv | 10.48550/arxiv.1702.01652 |
| format | Article |
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abundance of 81Kr/Kr in the atmosphere at the 90% confidence level. Due to its
simple production and transport in the terrestrial environment, 81Kr (halflife
= 230,000 yr) is an ideal tracer for old water and ice with mean residence
times in the range of 10^5-10^6 years. In recent years, 81Kr-dating has been
made available to the earth science community thanks to the development of Atom
Trap Trace Analysis (ATTA), a laser-based atom counting technique. Further
upgrades and improvements to the ATTA technique now allow us to demonstrate
81Kr/Kr measurements with relative uncertainties of 1% and place this new limit
on anthropogenic 81Kr. As a result of this limit, we have removed a potential
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abundance of 81Kr/Kr in the atmosphere at the 90% confidence level. Due to its
simple production and transport in the terrestrial environment, 81Kr (halflife
= 230,000 yr) is an ideal tracer for old water and ice with mean residence
times in the range of 10^5-10^6 years. In recent years, 81Kr-dating has been
made available to the earth science community thanks to the development of Atom
Trap Trace Analysis (ATTA), a laser-based atom counting technique. Further
upgrades and improvements to the ATTA technique now allow us to demonstrate
81Kr/Kr measurements with relative uncertainties of 1% and place this new limit
on anthropogenic 81Kr. As a result of this limit, we have removed a potential
systematic constraint for 81Kr-dating.</description><subject>Physics - Atomic Physics</subject><subject>Physics - Geophysics</subject><subject>Physics - Instrumentation and Detectors</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNotj81ugzAQhH3poUr7AD3VLwC1jRecI4r6pyLlEK4Vcs0GLAWMbKdq3r4m7WVWM7Ma6SPkgbNcKgD2pP2P_c55xUTOeAnilnweMEY7D1TTxk42UjfTeo6jd4sbcLaGHtzZGwzUHWkdJxeWEX2KFf_wdP07D2Mq3ERbr5dVDKYFfboEG-7IzVGfAt7_3w1pX57b3VvW7F_fd3WT6bISWS9V8cUQQAhtBEoBCLyqJCbHTAkcRCp7YFtUKKXcKgNGalVAz1RKiw15_Ju98nWLt5P2l27l7K6cxS8Y3kys</recordid><startdate>20170206</startdate><enddate>20170206</enddate><creator>Zappala, J. C</creator><creator>Bailey, K</creator><creator>Jiang, W</creator><creator>Micklich, B</creator><creator>Mueller, P</creator><creator>O'Connor, T. P</creator><creator>Purtschert, R</creator><scope>GOX</scope></search><sort><creationdate>20170206</creationdate><title>Setting a Limit on Anthropogenic Sources of Atmospheric 81Kr through Atom Trap Trace Analysis</title><author>Zappala, J. C ; Bailey, K ; Jiang, W ; Micklich, B ; Mueller, P ; O'Connor, T. P ; Purtschert, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a672-d483b0e5522ac2e425e51774eac20c65152e55d509e8e44498c5c4a835d085093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Physics - Atomic Physics</topic><topic>Physics - Geophysics</topic><topic>Physics - Instrumentation and Detectors</topic><toplevel>online_resources</toplevel><creatorcontrib>Zappala, J. C</creatorcontrib><creatorcontrib>Bailey, K</creatorcontrib><creatorcontrib>Jiang, W</creatorcontrib><creatorcontrib>Micklich, B</creatorcontrib><creatorcontrib>Mueller, P</creatorcontrib><creatorcontrib>O'Connor, T. P</creatorcontrib><creatorcontrib>Purtschert, R</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Zappala, J. C</au><au>Bailey, K</au><au>Jiang, W</au><au>Micklich, B</au><au>Mueller, P</au><au>O'Connor, T. P</au><au>Purtschert, R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Setting a Limit on Anthropogenic Sources of Atmospheric 81Kr through Atom Trap Trace Analysis</atitle><date>2017-02-06</date><risdate>2017</risdate><abstract>We place a 2.5% limit on the anthropogenic contribution to the modern
abundance of 81Kr/Kr in the atmosphere at the 90% confidence level. Due to its
simple production and transport in the terrestrial environment, 81Kr (halflife
= 230,000 yr) is an ideal tracer for old water and ice with mean residence
times in the range of 10^5-10^6 years. In recent years, 81Kr-dating has been
made available to the earth science community thanks to the development of Atom
Trap Trace Analysis (ATTA), a laser-based atom counting technique. Further
upgrades and improvements to the ATTA technique now allow us to demonstrate
81Kr/Kr measurements with relative uncertainties of 1% and place this new limit
on anthropogenic 81Kr. As a result of this limit, we have removed a potential
systematic constraint for 81Kr-dating.</abstract><doi>10.48550/arxiv.1702.01652</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Atomic Physics Physics - Geophysics Physics - Instrumentation and Detectors |
| title | Setting a Limit on Anthropogenic Sources of Atmospheric 81Kr through Atom Trap Trace Analysis |
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