Gamma-ray Output Spectra from 239 Pu Fission

Ullmann, John

doi:10.1051/epjconf/20159302016

Title: Gamma-ray Output Spectra from ²³⁹ Pu Fission

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Abstract

The gamma-ray multiplicities, individual gamma-ray energy spectra, and total gamma energy spectra following neutron-induced fission of ²³⁹Pu were measured using the DANCE detector at Los Alamos. Corrections for detector response were made using a forward-modeling technique based on propagating sets of gamma rays generated from a paramaterized model through a GEANT model of the DANCE array and adjusting the parameters for best fit to the measured spectra. The results for the gamma-ray spectrum and multiplicity are in general agreement with previous results, but the measured total gamma-ray energy is about 10% higher. We found that a dependence of the gamma-ray spectrum on the gamma-ray multplicity was also observed. Finally, global model calculations of the multiplicity and gamma energy distributions are in good agreement with the data, but predict a slightly softer total-energy distribution.

Authors:

Ullmann, John ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: Mon May 25 00:00:00 EDT 2015

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1208907

Alternate Identifier(s):: OSTI ID: 1234823

Report Number(s):: LA-UR-14-28192
Journal ID: ISSN 2100-014X; PII: epjconf_cgs2015_02016; TRN: US1500585

Grant/Contract Number:: AC52-06NA25396

Resource Type:: Accepted Manuscript

Journal Name:: EPJ Web of Conferences

Additional Journal Information:: Journal Volume: 93; Journal ID: ISSN 2100-014X

Publisher:: EDP Sciences

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Ullmann, John. Gamma-ray Output Spectra from 239 Pu Fission.  United States: N. p., 2015. 
Web.  doi:10.1051/epjconf/20159302016.

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                    Ullmann, John. Gamma-ray Output Spectra from 239 Pu Fission.  United States.  https://doi.org/10.1051/epjconf/20159302016

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                    Ullmann, John. Mon .  
"Gamma-ray Output Spectra from 239 Pu Fission".  United States.  https://doi.org/10.1051/epjconf/20159302016.  https://www.osti.gov/servlets/purl/1208907.

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@article{osti_1208907,

  title        = {Gamma-ray Output Spectra from 239 Pu Fission},

  author       = {Ullmann, John},

  abstractNote = {The gamma-ray multiplicities, individual gamma-ray energy spectra, and total gamma energy spectra following neutron-induced fission of 239Pu were measured using the DANCE detector at Los Alamos. Corrections for detector response were made using a forward-modeling technique based on propagating sets of gamma rays generated from a paramaterized model through a GEANT model of the DANCE array and adjusting the parameters for best fit to the measured spectra. The results for the gamma-ray spectrum and multiplicity are in general agreement with previous results, but the measured total gamma-ray energy is about 10% higher. We found that a dependence of the gamma-ray spectrum on the gamma-ray multplicity was also observed. Finally, global model calculations of the multiplicity and gamma energy distributions are in good agreement with the data, but predict a slightly softer total-energy distribution.},

  doi          = {10.1051/epjconf/20159302016},

  journal      = {EPJ Web of Conferences},

  number       = ,

  volume       = 93,

  place        = {United States},

  year         = {Mon May 25 00:00:00 EDT 2015},

  month        = {Mon May 25 00:00:00 EDT 2015}

}

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Title: Gamma-ray Output Spectra from 239 Pu Fission

Abstract

Citation Formats

Title: Gamma-ray Output Spectra from ²³⁹ Pu Fission