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Title: Rapid method to determine 226Ra in steel samples

Abstract

The rapid measurement of 226Ra in steel samples is very important in the event of a radiological emergency. 226Ra (T 1/2 = 1600 y) is a natural radionuclide present in the environment and a highly toxic alpha-emitter. Due to its long life and tendency to concentrate in bones, 226Ra ingestion or inhalation can lead to significant committed dose to individuals. A new method for the determination of 226Ra in steel samples has been developed at the Savannah River Environmental Laboratory. The new method employs a rugged acid digestion method that includes hydrofluoric acid, followed by a single precipitation step to rapidly preconcentrate the radium and remove most of the dissolved steel sample matrix. Radium is then separated using a combination of cation exchange and extraction chromatography, and 226Ra is measured by alpha spectrometry. This approach has a sample preparation time of ~ 8 h for steel samples, has a very high tracer yield (> 88%), and removes interferences effectively. A 133Ba yield tracer is used so that samples can be counted immediately following the separation method, avoiding lengthy ingrowth times that are required in other methods.

Authors:
 [1];  [1];  [1];  [2];  [3]
  1. Savannah River Nuclear Solutions, LLC, Aiken, SC (United States)
  2. Colorado State Univ., Fort Collins, CO (United States)
  3. PG Research Foundation, Inc., Lisle, IL (United States)
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1427455
Report Number(s):
SRNS-STI-2017-00659
Journal ID: ISSN 0236-5731; PII: 5491
Grant/Contract Number:  
AC09-08SR22470
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 314; Journal Issue: 2; Journal ID: ISSN 0236-5731
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY

Citation Formats

Maxwell, Sherrod L., Culligan, Brian, Hutchison, Jay B., Sudowe, Ralf, and McAlister, Daniel R. Rapid method to determine 226Ra in steel samples. United States: N. p., 2017. Web. doi:10.1007/s10967-017-5491-8.
Maxwell, Sherrod L., Culligan, Brian, Hutchison, Jay B., Sudowe, Ralf, & McAlister, Daniel R. Rapid method to determine 226Ra in steel samples. United States. doi:10.1007/s10967-017-5491-8.
Maxwell, Sherrod L., Culligan, Brian, Hutchison, Jay B., Sudowe, Ralf, and McAlister, Daniel R. Fri . "Rapid method to determine 226Ra in steel samples". United States. doi:10.1007/s10967-017-5491-8. https://www.osti.gov/servlets/purl/1427455.
@article{osti_1427455,
title = {Rapid method to determine 226Ra in steel samples},
author = {Maxwell, Sherrod L. and Culligan, Brian and Hutchison, Jay B. and Sudowe, Ralf and McAlister, Daniel R.},
abstractNote = {The rapid measurement of 226Ra in steel samples is very important in the event of a radiological emergency. 226Ra (T1/2 = 1600 y) is a natural radionuclide present in the environment and a highly toxic alpha-emitter. Due to its long life and tendency to concentrate in bones, 226Ra ingestion or inhalation can lead to significant committed dose to individuals. A new method for the determination of 226Ra in steel samples has been developed at the Savannah River Environmental Laboratory. The new method employs a rugged acid digestion method that includes hydrofluoric acid, followed by a single precipitation step to rapidly preconcentrate the radium and remove most of the dissolved steel sample matrix. Radium is then separated using a combination of cation exchange and extraction chromatography, and 226Ra is measured by alpha spectrometry. This approach has a sample preparation time of ~ 8 h for steel samples, has a very high tracer yield (> 88%), and removes interferences effectively. A 133Ba yield tracer is used so that samples can be counted immediately following the separation method, avoiding lengthy ingrowth times that are required in other methods.},
doi = {10.1007/s10967-017-5491-8},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
number = 2,
volume = 314,
place = {United States},
year = {Fri Sep 22 00:00:00 EDT 2017},
month = {Fri Sep 22 00:00:00 EDT 2017}
}

Journal Article:
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