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Title: Determination of relative krypton fission product yields from 14 MeV neutron induced fission of 238U at the National Ignition Facility

Abstract

Precisely-known fission yield distributions are needed to determine a fissioning isotope and the incident neutron energy in nuclear security applications. 14 MeV neutrons from DT fusion at the National Ignition Facility (NIF) induce fission in depleted uranium (DU) contained in the target assembly hohlraum. The fission yields of Kr isotopes (85m, 87, 88, and 89) are measured relative to the cumulative yield of 88Kr and compared to previously tabulated values. Here, the results from this experiment and England and Rider are in agreement, except for the 85mKr/ 88Kr ratio, which may be the result of incorrect nuclear data.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [2]; ORCiD logo [2];  [2]
  1. Univ. of California, Berkeley, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1342041
Report Number(s):
LLNL-CONF-694402
Journal ID: ISSN 0034-6748; RSINAK
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 11; Conference: 21st Topical Conference on High-Temperature Plasma Diagnostics, Madison, WI (United States), 5-9 Jun 2016; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 22 GENERAL STUDIES OF NUCLEAR REACTORS; 42 ENGINEERING

Citation Formats

Edwards, E. R., Cassata, W. S., Velsko, C. A., Yeamans, C. B., and Shaughnessy, D. A.. Determination of relative krypton fission product yields from 14 MeV neutron induced fission of 238U at the National Ignition Facility. United States: N. p., 2016. Web. doi:10.1063/1.4963155.
Edwards, E. R., Cassata, W. S., Velsko, C. A., Yeamans, C. B., & Shaughnessy, D. A.. Determination of relative krypton fission product yields from 14 MeV neutron induced fission of 238U at the National Ignition Facility. United States. doi:10.1063/1.4963155.
Edwards, E. R., Cassata, W. S., Velsko, C. A., Yeamans, C. B., and Shaughnessy, D. A.. Thu . "Determination of relative krypton fission product yields from 14 MeV neutron induced fission of 238U at the National Ignition Facility". United States. doi:10.1063/1.4963155. https://www.osti.gov/servlets/purl/1342041.
@article{osti_1342041,
title = {Determination of relative krypton fission product yields from 14 MeV neutron induced fission of 238U at the National Ignition Facility},
author = {Edwards, E. R. and Cassata, W. S. and Velsko, C. A. and Yeamans, C. B. and Shaughnessy, D. A.},
abstractNote = {Precisely-known fission yield distributions are needed to determine a fissioning isotope and the incident neutron energy in nuclear security applications. 14 MeV neutrons from DT fusion at the National Ignition Facility (NIF) induce fission in depleted uranium (DU) contained in the target assembly hohlraum. The fission yields of Kr isotopes (85m, 87, 88, and 89) are measured relative to the cumulative yield of 88Kr and compared to previously tabulated values. Here, the results from this experiment and England and Rider are in agreement, except for the 85mKr/88Kr ratio, which may be the result of incorrect nuclear data.},
doi = {10.1063/1.4963155},
journal = {Review of Scientific Instruments},
number = 11,
volume = 87,
place = {United States},
year = {Thu Sep 22 00:00:00 EDT 2016},
month = {Thu Sep 22 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
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