Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Petra Lagerkvist"'
Autor:
Khal Spencer, Chi-Gyu Lee, Elizabeth Keegan, Ross W. Williams, Theresa M. Kayzar-Boggs, Sun-Ho Han, Pavel Samuleev, Klaus Mayer, Maria Wallenius, Michael J. Kristo, Kyuseok Song, Danièle Cardona, Petra Lagerkvist, Henrik Ramebäck, Sangeeth Thiruvoth, Didier Maloubier, Jennifer J. Harrison, Floyd E. Stanley, Amy M. Gaffney, Sang Ho Lim, Anna Vesterlund, Zsolt Varga, K. C. Schorzman, Aubrey N. Nelwamondo, Ike Dimayuga, D. Kotze, E. Loi, Ayako Okubo, Lav Tandon
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 315:425-434
In a recent international exercise, 10 international nuclear forensics laboratories successfully performed radiochronometry on three low enriched uranium oxide samples, providing 12 analytical results using three different parent-daughter pairs servi
Autor:
Boon Kin Pong, Sun Ho Han, Aubrey N. Nelwamondo, Björn Sandström, Kyuseok Song, Sang Ho Lim, Jacobus J. Hancke, Anna Vesterlund, Doris Mer Lin Ho, Chi-Gyu Lee, Stina Holmgren, Jinkyu Park, Nobuo Shinohara, Petra Lagerkvist, Nobufumi Toda, Jong-Ho Park, Ayako Okubo, Angela H. J. Tan, Henrik Ramebäck, Annika Tovedal, S. Jonsson, Osamu Kataoka
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 315:353-363
The Fourth Collaborative Material Exercise (CMX-4) of the Nuclear Forensics International Technical Working Group (ITWG) registered the largest participation for this exercise in nuclear forensics, with seven of the 17 laboratories participating for
Autor:
Aubrey N. Nelwamondo, Lav Tandon, Petra Lagerkvist, Boon Kin Pong, Ning Xu, Anna Vesterlund, Zsolt Varga, Rachel E. Lindvall, Lisa P. Colletti, Henrik Ramebäck, Victoria Genetti, Maria Wallenius, Angela Hiong Jun Tan, G. R. Eppich, Banyana L. Kokwane, Gert Rasmussen
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 315:379-394
An international group of laboratories participating in CMX-4 subjected three samples to comparative nuclear forensic analysis using uranium assay and trace element analysis techniques to determine if the samples had similar or different origins. Ura
Autor:
Per Roos, Karl Andreas Jensen, Lindis Skipperud, Susanna Salminen-Paatero, Syverin Lierhagen, Ilia Rodushkin, Jixin Qiao, Petra Lagerkvist, Emma Engström, Yann Lahaye
Publikováno v:
Qiao, J, Lagerkvist, P, Rodushkin, I, Salminen-Paatero, S, Roos, P, Lierhagen, S, Jensen, K A, Engstrom, E, Lahaye, Y & Skipperud, L 2018, ' On the application of ICP-MS techniques for measuring uranium and plutonium: a Nordic inter-laboratory comparison exercise ', Journal of Radioanalytical and Nuclear Chemistry, vol. 315, no. 3, pp. 565-580 . https://doi.org/10.1007/s10967-018-5697-4
Inductively coupled plasma mass spectrometry (ICP-MS) techniques are widely used for determination of long-lived radionuclides and their isotopic ratios in the nuclear fields. Uranium (U) and Plutonium (Pu) isotopes have been determined by many resea
Crystal structure of radium sulfate: An X-ray powder diffraction and density functional theory study
Publikováno v:
Journal of Solid State Chemistry. 253:15-20
Radium-barium sulfate (Ra0.76Ba0.24SO4) powder was examined using X-ray Diffraction (XRD) technique and its crystal structure was optimized using Density Functional Theory (DFT). XRD data show that radium and barium sulfate form a solid solution and
Publikováno v:
Applied Radiation and Isotopes. 164:109293
A method for the measurement of the isotopic composition and time since last chemical separation (age) of plutonium is presented. The method includes alpha spectrometric measurement of 238Pu, 239Pu and 240Pu where the ratio of 239Pu and 240Pu was det
Autor:
Anna Vesterlund, T. Vidmar, Petra Lagerkvist, Annika Tovedal, Stina Holmgren, Björn Sandström, Henrik Ramebäck, S. Jonsson, J. Kastlander
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 815:57-61
The isotopic composition of uranium was measured using high resolution gamma spectrometry. Two acid solutions and two samples in the form of UO2 pellets were measured. The measurements were done in close geometries, i.e. directly on the endcap of the
Autor:
Marie Bourgeaux-Goget, Elisabeth Strålberg, Henrik Ramebäck, Petra Lagerkvist, Jixin Qiao, Susanna Salminen-Paatero, Per Roos, Stina Holmgren Rondahl
Publikováno v:
Qiao, J, Salminen-Paatero, S, Rondahl, S H, Bourgeaux-Goget, M, Roos, P, Lagerkvist, P, Strålberg, E & Ramebäck, H 2017, ' Inter-laboratory exercise with an aim to compare methods for 90 Sr and 239,240 Pu determination in environmental soil samples ', Journal of Radioanalytical and Nuclear Chemistry, vol. 314, no. 2, pp. 813-826 . https://doi.org/10.1007/s10967-017-5385-9
In order to deliver reliable results for a multitude of different scenarios, e.g. emergency preparedness, environmental monitoring, nuclear decommissioning and waste management, there is a constant process of method development in the field of radioa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63f03ab4866ab0711e9ecc7150f4d6f6
https://orbit.dtu.dk/en/publications/73e2cb8e-7eec-45d7-8a14-3ab9f466ae2b
https://orbit.dtu.dk/en/publications/73e2cb8e-7eec-45d7-8a14-3ab9f466ae2b
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 301:545-553
In this work, the kinetics of barium sulfate recrystallization has been studied in acidic 0.01 mol dm -3 sodium sulfate solution using Ra-223 and Ba-133 tracers at very low total radium concentration, i. e. less than 10(-13) mol dm(-3). It was found
Autor:
Marie Bourgeaux-Goget, Stina Holmgren Rondahl, Susanna Salminen-Paatero, Per Roos, Henrik Ramebäck, Jixin Qiao, Elisabeth Strålberg, Petra Lagerkvist
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 314:827-827
In order to deliver reliable results for a multitude of different scenarios, e.g. emergency preparedness, environmental monitoring, nuclear decommissioning and waste management, there is a constant process of method development in the field of radioa