Simultaneous Separation of Actinium and Radium Isotopes from a Proton Irradiated Thorium Matrix
Abstract
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.
- Authors:
-
[1];
[3];
[3];
[3];
[3];
[3];
- 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)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1396129
- Alternate Identifier(s):
- OSTI ID: 1491311
- Report Number(s):
- LA-UR-17-23916
Journal ID: ISSN 2045-2322
- Grant/Contract Number:
- AC52-06NA25396; AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; experimental nuclear physics; nuclear chemistry
Citation Formats
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., and Fassbender, Michael E. Simultaneous Separation of Actinium and Radium Isotopes from a Proton Irradiated Thorium Matrix. United States: N. p., 2017.
Web. doi:10.1038/s41598-017-08506-9.
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. Simultaneous Separation of Actinium and Radium Isotopes from a Proton Irradiated Thorium Matrix. United States. doi:10.1038/s41598-017-08506-9.
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., and Fassbender, Michael E. Tue .
"Simultaneous Separation of Actinium and Radium Isotopes from a Proton Irradiated Thorium Matrix". United States. doi:10.1038/s41598-017-08506-9. https://www.osti.gov/servlets/purl/1396129.
@article{osti_1396129,
title = {Simultaneous Separation of Actinium and Radium Isotopes from a Proton Irradiated Thorium Matrix},
author = {Mastren, Tara and Radchenko, Valery and Owens, Allison and Copping, Roy and Boll, Rose Ann and Griswold, Justin R. and Mirzadeh, Saed and Wyant, Lance E. and Brugh, Mark and Engle, Jonathan W. and Nortier, Francois M. and Birnbaum, Eva R. and John, Kevin D. and Fassbender, Michael E.},
abstractNote = {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.},
doi = {10.1038/s41598-017-08506-9},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {2017},
month = {8}
}
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Figure 1: Cation Exchange Chromatography.
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Microfluidics-based separation of actinium-225 from radium-225 for medical applications
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