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Title: A UO2-based salt target for rapid isolation of fission products

Abstract

Here, we report here an initial isolation study based upon the use of small uranium oxide particles dispersed in a soluble salt matrix to evaluate the relative recovery of fission products into acidic media. We further show that the macrostructures of the uranium microparticles are largely preserved, such that the bulk target material could be retained for additional irradiations or characterizations. Through this approach, fission products can be separated from the actinide-based target using low molarities of acid without the need to dissolve the actinide itself, reducing the amount of acidic waste. Extraction yields using two molarities of HCl and HNO3 are compared.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3]
  1. Univ. of Nevada - Las Vegas, Las Vegas, NV (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of Nevada - Las Vegas, Las Vegas, NV (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1494476
Report Number(s):
LA-UR-18-24296
Journal ID: ISSN 0236-5731
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 319; Journal Issue: 3; Journal ID: ISSN 0236-5731
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; Fission products; Recoil energy; UO2 irradiation; Acid extraction; Uranium microparticles; Fission path lengths; Catcher

Citation Formats

Dorhout, Jacquelyn Marie, Wilkerson, Marianne Perry, and Czerwinski, Kenneth R. A UO2-based salt target for rapid isolation of fission products. United States: N. p., 2019. Web. doi:10.1007/s10967-019-06433-9.
Dorhout, Jacquelyn Marie, Wilkerson, Marianne Perry, & Czerwinski, Kenneth R. A UO2-based salt target for rapid isolation of fission products. United States. doi:10.1007/s10967-019-06433-9.
Dorhout, Jacquelyn Marie, Wilkerson, Marianne Perry, and Czerwinski, Kenneth R. Wed . "A UO2-based salt target for rapid isolation of fission products". United States. doi:10.1007/s10967-019-06433-9. https://www.osti.gov/servlets/purl/1494476.
@article{osti_1494476,
title = {A UO2-based salt target for rapid isolation of fission products},
author = {Dorhout, Jacquelyn Marie and Wilkerson, Marianne Perry and Czerwinski, Kenneth R.},
abstractNote = {Here, we report here an initial isolation study based upon the use of small uranium oxide particles dispersed in a soluble salt matrix to evaluate the relative recovery of fission products into acidic media. We further show that the macrostructures of the uranium microparticles are largely preserved, such that the bulk target material could be retained for additional irradiations or characterizations. Through this approach, fission products can be separated from the actinide-based target using low molarities of acid without the need to dissolve the actinide itself, reducing the amount of acidic waste. Extraction yields using two molarities of HCl and HNO3 are compared.},
doi = {10.1007/s10967-019-06433-9},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 3,
volume = 319,
place = {United States},
year = {2019},
month = {1}
}

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