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Title: Measurements of extinct fission products in nuclear bomb debris: Determination of the yield of the Trinity nuclear test 70 y later

Abstract

This study describes an approach to measuring extinct fission products that would allow for the characterization of a nuclear test at any time. The isotopic composition of molybdenum in five samples of glassy debris from the 1945 Trinity nuclear test has been measured. Nonnatural molybdenum isotopic compositions were observed, reflecting an input from the decay of the short-lived fission products 95Zr and 97Zr. By measuring both the perturbation of the 95Mo/ 96Mo and 97Mo/ 96Mo isotopic ratios and the total amount of molybdenum in the Trinity nuclear debris samples, it is possible to calculate the original concentrations of the 95Zr and 97Zr isotopes formed in the nuclear detonation. Together with a determination of the amount of plutonium in the debris, these measurements of extinct fission products allow for new estimates of the efficiency and yield of the historic Trinity test.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [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 Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1340968
Report Number(s):
LA-UR-16-22956
Journal ID: ISSN 0027-8424
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 113; Journal Issue: 29; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; nuclear forensics; nuclear testing; treaty monitoring; stable isotope perturbation measurements

Citation Formats

Hanson, Susan Kloek, Pollington, Anthony Douglas, Waidmann, Christopher Russell, Kinman, William Scott, Wende, Allison Marie, Miller, Jeffrey L., Berger, Jennifer A., Oldham, Warren James, and Selby, Hugh D. Measurements of extinct fission products in nuclear bomb debris: Determination of the yield of the Trinity nuclear test 70 y later. United States: N. p., 2016. Web. doi:10.1073/pnas.1602792113.
Hanson, Susan Kloek, Pollington, Anthony Douglas, Waidmann, Christopher Russell, Kinman, William Scott, Wende, Allison Marie, Miller, Jeffrey L., Berger, Jennifer A., Oldham, Warren James, & Selby, Hugh D. Measurements of extinct fission products in nuclear bomb debris: Determination of the yield of the Trinity nuclear test 70 y later. United States. doi:10.1073/pnas.1602792113.
Hanson, Susan Kloek, Pollington, Anthony Douglas, Waidmann, Christopher Russell, Kinman, William Scott, Wende, Allison Marie, Miller, Jeffrey L., Berger, Jennifer A., Oldham, Warren James, and Selby, Hugh D. Tue . "Measurements of extinct fission products in nuclear bomb debris: Determination of the yield of the Trinity nuclear test 70 y later". United States. doi:10.1073/pnas.1602792113. https://www.osti.gov/servlets/purl/1340968.
@article{osti_1340968,
title = {Measurements of extinct fission products in nuclear bomb debris: Determination of the yield of the Trinity nuclear test 70 y later},
author = {Hanson, Susan Kloek and Pollington, Anthony Douglas and Waidmann, Christopher Russell and Kinman, William Scott and Wende, Allison Marie and Miller, Jeffrey L. and Berger, Jennifer A. and Oldham, Warren James and Selby, Hugh D.},
abstractNote = {This study describes an approach to measuring extinct fission products that would allow for the characterization of a nuclear test at any time. The isotopic composition of molybdenum in five samples of glassy debris from the 1945 Trinity nuclear test has been measured. Nonnatural molybdenum isotopic compositions were observed, reflecting an input from the decay of the short-lived fission products 95Zr and 97Zr. By measuring both the perturbation of the 95Mo/96Mo and 97Mo/96Mo isotopic ratios and the total amount of molybdenum in the Trinity nuclear debris samples, it is possible to calculate the original concentrations of the 95Zr and 97Zr isotopes formed in the nuclear detonation. Together with a determination of the amount of plutonium in the debris, these measurements of extinct fission products allow for new estimates of the efficiency and yield of the historic Trinity test.},
doi = {10.1073/pnas.1602792113},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 29,
volume = 113,
place = {United States},
year = {Tue Jul 05 00:00:00 EDT 2016},
month = {Tue Jul 05 00:00:00 EDT 2016}
}

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