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Title: Reactor production of Thorium-229

Abstract

Limited availability of 229Th for clinical applications of 213Bi necessitates investigation of alternative production routes. In reactor production, 229Th is produced from neutron transmutation of 226Ra, 228Ra, 227Ac and 228Th. Here, we evaluate irradiations of 226Ra, 228Ra, and 227Ac targets at the ORNL High Flux Isotope Reactor.

Authors:
 [1];  [1];  [1]; ;  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1253240
Grant/Contract Number:
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Radiation and Isotopes
Additional Journal Information:
Journal Volume: 114; Journal Issue: C; Journal ID: ISSN 0969-8043
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; Thorium-229; Thorium-228; Actinium-225; Actinium-227; Radium-226; Radium-228; neutron reactions; isochain; high flux isotope reactor

Citation Formats

Boll, Rose Ann, Murphy, Karen E., Denton, David L., Tamara J. Haverlock, Garland, Marc A., Mirzadeh, Saed, Hogle, Susan, and Owens, Allison. Reactor production of Thorium-229. United States: N. p., 2016. Web. doi:10.1016/j.apradiso.2016.05.002.
Boll, Rose Ann, Murphy, Karen E., Denton, David L., Tamara J. Haverlock, Garland, Marc A., Mirzadeh, Saed, Hogle, Susan, & Owens, Allison. Reactor production of Thorium-229. United States. doi:10.1016/j.apradiso.2016.05.002.
Boll, Rose Ann, Murphy, Karen E., Denton, David L., Tamara J. Haverlock, Garland, Marc A., Mirzadeh, Saed, Hogle, Susan, and Owens, Allison. 2016. "Reactor production of Thorium-229". United States. doi:10.1016/j.apradiso.2016.05.002. https://www.osti.gov/servlets/purl/1253240.
@article{osti_1253240,
title = {Reactor production of Thorium-229},
author = {Boll, Rose Ann and Murphy, Karen E. and Denton, David L. and Tamara J. Haverlock and Garland, Marc A. and Mirzadeh, Saed and Hogle, Susan and Owens, Allison},
abstractNote = {Limited availability of 229Th for clinical applications of 213Bi necessitates investigation of alternative production routes. In reactor production, 229Th is produced from neutron transmutation of 226Ra, 228Ra, 227Ac and 228Th. Here, we evaluate irradiations of 226Ra, 228Ra, and 227Ac targets at the ORNL High Flux Isotope Reactor.},
doi = {10.1016/j.apradiso.2016.05.002},
journal = {Applied Radiation and Isotopes},
number = C,
volume = 114,
place = {United States},
year = 2016,
month = 5
}

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  • Metallic thorium production was attempted by fused salts electrolysis in an argon atmosphere, using the thorium fluoride double salts system. The electrolyte was pure thorium salts obtained from processing Korean monazite sands through alkali decomposition and solvent extraction. The bath content consisted of sodium chloride -potassium chloride and thorium salt eutectic. Relations between current densities, reacting temperature, salts ratio and particle sizes were investigated. Results were obtained as follows: 1) Current densities were 20 to 25 amp/dm. 2) Optimum temperature was about 800 deg C. 3) The ratio of thorium salt to alkali halides in bath was unimportant at 15more » to 50%. Decreasing the thorium salt content of bath below 5% results in a discharge of alkali metal ions at the cathode. Under these conditions, metallic thorium 99% over in purity and current efficiencies 70 to 75% were obtained. (auth)« less
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