FIER: Software for analytical modeling of delayed gamma-ray spectra

Matthews, E. F.; Goldblum, B. L.; Bernstein, L. A.; Quiter, B. J.; Brown, J. A.; Younes, W.; Burke, J. T.; Padgett, S. W.; Ressler, J. J.; Tonchev, A. P.

doi:10.1016/j.nima.2018.02.072

Title: FIER: Software for analytical modeling of delayed gamma-ray spectra

Journal Article · Mon Feb 26 00:00:00 EST 2018 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2018.02.072· OSTI ID:1466178

Matthews, E. F. ^[1]; Goldblum, B. L. ^[1]; Bernstein, L. A. ^[2]; Quiter, B. J. ^[3]; Brown, J. A. ^[1]; Younes, W. ^[4]; Burke, J. T. ^[4]; Padgett, S. W. ^[4]; Ressler, J. J. ^[4]; Tonchev, A. P. ^[4]

Univ. of California, Berkeley, CA (United States). Department of Nuclear Engineering
Univ. of California, Berkeley, CA (United States). Department of Nuclear Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

We report a new software package, the Fission Induced Electromagnetic Response (FIER) code, has been developed to analytically predict delayed γ-ray spectra following fission. FIER uses evaluated nuclear data and solutions to the Bateman equations to calculate the time-dependent populations of fission products and their decay daughters resulting from irradiation of a fissionable isotope. These populations are then used in the calculation of γ-ray emission rates to obtain the corresponding delayed γ-ray spectra. FIER output was compared to experimental data obtained by irradiation of a ²³⁵U sample in the Godiva critical assembly. This investigation illuminated discrepancies in the input nuclear data libraries, showcasing the usefulness of FIER as a tool to address nuclear data deficiencies through comparison with experimental data. Finally, FIER provides traceability between γ-ray emissions and their contributing nuclear species, decay chains, and parent fission fragments, yielding a new capability for the nuclear science community.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344; NA0003180; NA0000979; AC02-05CH11231

OSTI ID:: 1466178

Alternate ID(s):: OSTI ID: 1548665

Report Number(s):: LLNL-JRNL-742012; 896227

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 891, Issue C; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 6 works

Citation information provided by
Web of Science

References (5)

Novel methodology for the quantitative assay of fissile materials using temporal and spectral β-delayed γ-ray signatures Chivers, D. H.; Alfonso, K.; Goldblum, B. L. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 269, Issue 16 https://doi.org/10.1016/j.nimb.2011.05.013	journal	August 2011
Comparison of Geant4 and MCNP6 for use in delayed fission radiation simulation Hecht, A. A.; Blakeley, R. E.; Martin, W. J. Annals of Nuclear Energy, Vol. 69 https://doi.org/10.1016/j.anucene.2014.02.004	journal	July 2014
Resonance Self-Shielding Methodologies in SCALE 6 Williams, Mark L. Nuclear Technology, Vol. 174, Issue 2 https://doi.org/10.13182/NT09-104	journal	May 2011
General solution of Bateman equations for nuclear transmutations Cetnar, Jerzy Annals of Nuclear Energy, Vol. 33, Issue 7 https://doi.org/10.1016/j.anucene.2006.02.004	journal	May 2006
Reducing uncertainties for short lived cumulative fission product yields Stave, Sean; Prinke, Amanda; Greenwood, Larry Journal of Radioanalytical and Nuclear Chemistry, Vol. 307, Issue 3 https://doi.org/10.1007/s10967-015-4436-3	journal	September 2015