Simultaneous Separation of Actinium and Radium Isotopes from a Proton Irradiated Thorium Matrix

Mastren, Tara; Radchenko, Valery; Owens, Allison; Copping, Roy; Boll, Rose Ann; Griswold, Justin R.; Mirzadeh, Saed; Wyant, Lance E.; Brugh, Mark; Engle, Jonathan W.; Nortier, Francois M.; Birnbaum, Eva R.; John, Kevin D.; Fassbender, Michael E.

doi:10.1038/s41598-017-08506-9

Title: Simultaneous Separation of Actinium and Radium Isotopes from a Proton Irradiated Thorium Matrix

Journal Article · Tue Aug 15 00:00:00 EDT 2017 · Scientific Reports

DOI:https://doi.org/10.1038/s41598-017-08506-9· OSTI ID:1396129

^[1]; Radchenko, Valery ^[2];

^[3];

^[3]; Wyant, Lance E. ^[3]; Brugh, Mark ^[2]; Engle, Jonathan W. ^[2]; Nortier, Francois M. ^[2]; Birnbaum, Eva R. ^[2]; John, Kevin D. ^[2]; Fassbender, Michael E. ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Chemistry Division
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

A new method has been developed for the isolation of 223,224,225Ra, in high yield and purity, from a proton irradiated 232Th matrix. Herein we report an all-aqueous process using multiple solid-supported adsorption steps including a citrate chelation method developed to remove >99.9% of the barium contaminants by activity from the final radium product. A procedure involving the use of three columns in succession was developed, and the separation of 223,224,225Ra from the thorium matrix was obtained with an overall recovery yield of 91 ± 3%, average radiochemical purity of 99.9%, and production yields that correspond to physical yields based on previously measured excitation functions.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC52-06NA25396; AC05-00OR22725

OSTI ID:: 1396129

Alternate ID(s):: OSTI ID: 1491311

Report Number(s):: LA-UR-17-23916

Journal Information:: Scientific Reports, Vol. 7, Issue 1; ISSN 2045-2322

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 22 works

Citation information provided by
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