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Title: Correction to Account for the Isomer of 87Y in the 87Y Radiochemical Diagnostic

Abstract

Here we summarize the need to correct inventories of 87Y reported by the Los Alamos weapons radiochemistry team. The need for a correction arises from the fact that a 13.37 hour isomer of 87Y, that is strongly populated through (n, 2n) reactions on 88Y and isomers of 88Y, has not been included in the experimental analyses of NTS data. Inventories of 87Y reported by LANL’s weapons radiochemistry team should be multiplied by a correction factor that is numerically close to 0.9. Alternatively, the user could increase simulated values of 87Y by 1.1 for comparison with the original method for reporting NTS values. If the inventories in question were directly reported by LLNL’s radiochemistry team, care must be taken to determine whether or not the correction factor has already been applied.

Authors:
 [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
OSTI Identifier:
1408853
Report Number(s):
LA-UR-17-30370
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY

Citation Formats

Hayes-Sterbenz, Anna Catherine, and Jungman, Gerard. Correction to Account for the Isomer of 87Y in the 87Y Radiochemical Diagnostic. United States: N. p., 2017. Web. doi:10.2172/1408853.
Hayes-Sterbenz, Anna Catherine, & Jungman, Gerard. Correction to Account for the Isomer of 87Y in the 87Y Radiochemical Diagnostic. United States. doi:10.2172/1408853.
Hayes-Sterbenz, Anna Catherine, and Jungman, Gerard. Mon . "Correction to Account for the Isomer of 87Y in the 87Y Radiochemical Diagnostic". United States. doi:10.2172/1408853. https://www.osti.gov/servlets/purl/1408853.
@article{osti_1408853,
title = {Correction to Account for the Isomer of 87Y in the 87Y Radiochemical Diagnostic},
author = {Hayes-Sterbenz, Anna Catherine and Jungman, Gerard},
abstractNote = {Here we summarize the need to correct inventories of 87Y reported by the Los Alamos weapons radiochemistry team. The need for a correction arises from the fact that a 13.37 hour isomer of 87Y, that is strongly populated through (n, 2n) reactions on 88Y and isomers of 88Y, has not been included in the experimental analyses of NTS data. Inventories of 87Y reported by LANL’s weapons radiochemistry team should be multiplied by a correction factor that is numerically close to 0.9. Alternatively, the user could increase simulated values of 87Y by 1.1 for comparison with the original method for reporting NTS values. If the inventories in question were directly reported by LLNL’s radiochemistry team, care must be taken to determine whether or not the correction factor has already been applied.},
doi = {10.2172/1408853},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 13 00:00:00 EST 2017},
month = {Mon Nov 13 00:00:00 EST 2017}
}

Technical Report:

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