Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Justin E Halverson"'
Plutonium isotopes in the terrestrial environment at the Savannah River Site, USA: a long-term study
Autor:
Heather A. Brant, Justin E Halverson, James R. Cadieux, Patterson R. Nuessle, Gregory Hall, Christopher R. Armstrong
Publikováno v:
Environmental sciencetechnology. 49(3)
This work presents the findings of a long-term plutonium (Pu) study at Savannah River Site (SRS) conducted between 2003 and 2013. Terrestrial environmental samples were obtained at the Savannah River National Laboratory (SRNL) in the A-Area. Plutoniu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6cb6f460ea2cb06a2d9ceca0f7b3402
https://pubmed.ncbi.nlm.nih.gov/25535652
https://pubmed.ncbi.nlm.nih.gov/25535652
Publikováno v:
Health physics. 77(6)
During the summer of 1993, seawater in the Bering and Chukchi Seas was sampled on a joint Russian-American cruise [BERPAC] of the RV Okean to determine concentrations of tritium, 239Pu and 240Pu. Concentrations of tritium were determined by electroly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0926a2636392ba03aea3369318f41df9
https://pubmed.ncbi.nlm.nih.gov/10568546
https://pubmed.ncbi.nlm.nih.gov/10568546
Autor:
Justin E. Halverson
Publikováno v:
Nuclear Instruments and Methods in Physics Research. 223:349-355
Radiation counting of nuclear decay events is the most commonly used method of measuring radionuclide concentrations. However, some radionuclides, such as transuranics: 235 U, 236 U, 240 Pu, 241 Pu, 242 Pu, and the fission products: 99 Tc and 135 Cs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdf8ddb61f469a61f31602b341c1ad96
https://doi.org/10.1016/0167-5087(84)90673-2
https://doi.org/10.1016/0167-5087(84)90673-2
Autor:
Justin E. Halverson, Ken O. Buesseler
Publikováno v:
Journal of Environmental Radioactivity. 5:425-444
A thermal ionization mass spectrometric technique is presented for the detection of 239Pu and 240Pu in sea water, pore water, ocean sediments, sediment trap samples and coral samples. Both sample preparation and purification procedures, as well as th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41c72a5909cd29a2b35b2c05b12b9986
https://doi.org/10.1016/0265-931x(87)90018-x
https://doi.org/10.1016/0265-931x(87)90018-x
Autor:
Walter H. Johnson, Justin E. Halverson
Publikováno v:
Physical Review C. 17:1414-1416
A 41 cm double focusing mass spectrometer has been used to measure three closely spaced doublets /sup 1/2C/sub 6/ /sup 2/H/sub 6/- /sup 1/3C/sub 6/ /sup 1/H/sub 6/, /sup 1/2C/sub 6/ /sup 1/H/sub 1/2-/sup 1/2C/sub 6/ /sup 2/H/sub 6/, and /sup 1/2C/sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::931fa5108b1116cb27cc20e5cd26985c
https://doi.org/10.1103/physrevc.17.1414
https://doi.org/10.1103/physrevc.17.1414
Publikováno v:
Atomic Masses and Fundamental Constants 6 ISBN: 9781468437188
This paper will describe some of the recent mass doublet measurements made at the University of Minnesota during the period since AMCO 5. I will discuss two Ph.D. thesis experiments. The first, submitted by Dr. Justin Halverson in June 1977 involves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b6e2454c8f5fd10a0e1c06b72eeb232
https://doi.org/10.1007/978-1-4684-3716-4_28
https://doi.org/10.1007/978-1-4684-3716-4_28
Publikováno v:
Atomic Masses and Fundamental Constants 5 ISBN: 9781468426847
This paper will describe some recent doublet results and describe further peak matching technique development which has occurred as part of the continuing program of atomic mass measurements at the University of Minnesota. At AMCO 4, David Kayser pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72ec2be833197f699c511806feaae78e
https://doi.org/10.1007/978-1-4684-2682-3_25
https://doi.org/10.1007/978-1-4684-2682-3_25
Autor:
Justin E. Halverson, Walter H. Johnson
Publikováno v:
Physical Review C. 20:345-346
A 41-cm double-focusing mass spectrometer has been used to measure atomic masses of $^{167}\mathrm{Er}$, $^{168}\mathrm{Er}$, $^{179}\mathrm{Hf}$, $^{180}\mathrm{Hf}$, $^{189}\mathrm{Os}$, and $^{190}\mathrm{Os}$. The measurements have yielded absolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::306ec40ac203c30c75df97e61eb2d115
https://doi.org/10.1103/physrevc.20.345
https://doi.org/10.1103/physrevc.20.345
Autor:
Walter H. Johnson, Justin E. Halverson
Publikováno v:
Physical Review C. 18:2450-2450
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fb42e1fcbfb4fe585bb48836ff6c371
https://doi.org/10.1103/physrevc.18.2450.2
https://doi.org/10.1103/physrevc.18.2450.2