Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Lisa E Townsend"'
Autor:
Lisa E Townsend, Khalil J. Spencer, Amy M. Gaffney, Lisa Michelle Colletti, Debbie A. Bostick, Richard M. Essex, John D. Partridge, Joe M. Giaquinto, Alice K. Slemmons, Ross W. Williams, John Rolinson, Benjamin D. Roach, Elmer Lujan, Lav Tandon, Kerri C. Treinen, Kyle M. Samperton, Cole R. Hexel, Casey C. Finstad, Diana L. Decker, Christopher G. Worley, Floyd E. Stanley, Ning Xu
Publikováno v:
Radiochimica Acta. 110:9-22
Two plutonium oxides were prepared as unique reference materials for measurement of actinide elements present as trace constituents. Each reference material unit is approximately 200 mg of PuO2 powder in a quartz glass bottle. Characterized attribute
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b396f21a62065e1a53001aba100d97a5
https://doi.org/10.1515/ract-2021-1095
https://doi.org/10.1515/ract-2021-1095
Autor:
Elmer Lujan, Lisa E Townsend, Lav Tandon, Kevin J. Kuhn, Alexander Martinez, Keller Ra, Lynn A. Foster, Donivan R. Porterfield, Mariam R. Thomas, Khal Spencer, Daniel S. Schwartz, Ning Xu, Lisa Michelle Colletti, Floyd E. Stanley, Benjamin L. Byerly
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 312:95-104
Thorough physical and chemical characterization of plutonium–beryllium (PuBe) neutron sources is an important capability with applications ranging from material accountancy to nuclear forensics. Characterization of PuBe sources is not trivial owing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::499a770e4edd42a5b60a1b7e6d86ea78
https://doi.org/10.1007/s10967-017-5192-3
https://doi.org/10.1007/s10967-017-5192-3
Autor:
Ning Xu, Russell C. Keller, Mariam R. Thomas, Steve Charles Myers, Jamie L. Doyle, Laurie F. Walker, Alexander Martinez, Benjamin L. Byerly, Elmer Lujan, Donivan R. Porterfield, Katherine Garduno, Lav Tandon, James Brent Fulwyler, Khalil J. Spencer, Floyd E. Stanley, Lisa Michelle Colletti, Kevin J. Kuhn, Lisa E Townsend
Publikováno v:
Talanta. 159:200-207
Nuclear forensic publications, performance tests, and research and development efforts typically target the bulk global inventory of intentionally safeguarded materials, such as plutonium (Pu) and uranium (U). Other materials, such as neptunium (Np),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f52f155c43bcffd82d0301809dda9ab
https://doi.org/10.1016/j.talanta.2016.06.028
https://doi.org/10.1016/j.talanta.2016.06.028
Autor:
Jung Rim, Katherine Garduno, Ning Xu, Lisa Michelle Colletti, Kevin J. Kuhn, Donivan R. Porterfield, Mariam R. Thomas, Alexander Martinez, Benjamin L. Byerly, Elmer Lujan, Lav Tandon, Lisa E Townsend, Khal Spencer, Floyd E. Stanley, Mike Schappert
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 310:623-632
In this study, a certified plutonium metal reference material (CRM 126) with a known production history is examined using analytical methods that are commonly employed in nuclear forensics for provenancing and attribution. The measured plutonium isot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddf8356dc9640df4b857df3fd030536d
https://doi.org/10.1007/s10967-016-4919-x
https://doi.org/10.1007/s10967-016-4919-x
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 297:127-132
An ICP-MS analytical method as an alternative to the current radiochemical method was developed to analyze trace level 237Np in bulk plutonium materials. In this method, 237Np is determined together with a suite of trace elements during a single anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a10e9d1d41c24ac50e7308a154640e97
https://doi.org/10.1007/s10967-012-2370-1
https://doi.org/10.1007/s10967-012-2370-1
Autor:
Dominic S. Peterson, Mark Scott, Lav Tandon, Christy E. Ruggiero, Diana L. Decker, R. A. Pereyra, Terry Hahn, David H. Beddingfield, Donivan R. Porterfield, Daniel S. Schwartz, Khalil J. Spencer, D. Gallimore, H. M. Volz, Rodney J. McCabe, Patrick T. Martinez, Amy Wong, S.E. Garner, Steven C. Myers, Laurie F. Walker, Russ Gritzo, Stephen P. LaMont, Kevin J. Kuhn, Lisa E Townsend, Joseph Banar
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 282:573-579
This paper presents results from the examination of a number of archived neutron-irradiated uranium targets used for past plutonium production testing. Three of these targets were destructively characterized using Los Alamos National Laboratory actin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5134dfa8b545a60e5a9c01df6da918bc
https://doi.org/10.1007/s10967-009-0297-y
https://doi.org/10.1007/s10967-009-0297-y
Autor:
Khalil J. Spencer, Lisa E Townsend, Dave Gallimore, Laurie F. Walker, Kevin J. Kuhn, Ning Xu, Lav Tandon
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 282:549-554
Plutonium (Pu) metal samples from an interlaboratory exchange exercise and simulated swipe samples were dated using plutonium–uranium (Pu–U) and plutonium–americium (Pu–Am). Metal data were evaluated for consistency and the swipe data against
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88fa173486455de539fe5e857cde1bf0
https://doi.org/10.1007/s10967-009-0287-0
https://doi.org/10.1007/s10967-009-0287-0
Autor:
Frances Louise Martin, Christopher G. Worley, Lisa E Townsend, Andres Patricio Borrego, Daniel S. Schwartz, Lisa Michelle Colletti, Ann Rene Schake, Russell C. Keller, Galey Jean Bland, Mariam R. Thomas, James Brent Fulwyler, Michael Francis Schappert, Dylan James Klundt, Khalil J. Spencer, Elmer Lujan, Donivan R. Porterfield, Dennis Patrick Montoya, Patrick T. Martinez, Charlotte S. Holland, Katherine Garduno, Ning Xu, Frank Preuitt Dickson, Alonso Castro, Steven C. Myers, Rebecca M. Chamberlin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e03fc7abb5bc7100cb713d626879e97e
https://doi.org/10.2172/1213501
https://doi.org/10.2172/1213501
Publikováno v:
Analytical Chemistry. 67:1413-1417
We describe the use of a two-stage membrane sampling system coupled with an ion trap spectrometer for the direct analysis of volatile organic compounds in air with quantitation limits to low parts-per-billion levels and detection to parts-per-trillio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f29a87d45acecef251010837c741d35
https://doi.org/10.1021/ac00104a017
https://doi.org/10.1021/ac00104a017
Publikováno v:
Powder Diffraction. 25:213-213
To minimize waste, improve process safety, and minimize costs, modifications were implemented to a method for quantifying gallium in plutonium metal using wavelength dispersive X-ray fluorescence. These changes included reducing sample sizes, reducin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b279c9a0140f3a03fe5abcae18ee4319
https://doi.org/10.1154/1.3454974
https://doi.org/10.1154/1.3454974