Advances in the computation of the Sjöstrand, Rossi, and Feynman distributions

Talamo, A.; Gohar, Y.; Gabrielli, F.; Rineiski, A.; Pyeon, C. H.

doi:10.1016/j.pnucene.2017.01.006

Advances in the computation of the Sjöstrand, Rossi, and Feynman distributions

Journal Article · Wed Feb 01 00:00:00 EST 2017 · Progress in Nuclear Energy

DOI:https://doi.org/10.1016/j.pnucene.2017.01.006· OSTI ID:1422765

^[1]; Gohar, Y. ^[1]; Gabrielli, F. ^[2]; Rineiski, A. ^[2]; Pyeon, C. H. ^[3]

Argonne National Lab. (ANL), Lemont, IL (United States)
Karlsruhe Inst. of Technology (KIT) (Germany)
Kyoto Univ. (Japan)

This study illustrates recent computational advances in the application of the Sjöstrand (area), Rossi, and Feynman methods to estimate the effective multiplication factor of a subcritical system driven by an external neutron source. The methodologies introduced in this study have been validated with the experimental results from the KUKA facility of Japan by Monte Carlo (MCNP6 and MCNPX) and deterministic (ERANOS, VARIANT, and PARTISN) codes. When the assembly is driven by a pulsed neutron source generated by a particle accelerator and delayed neutrons are at equilibrium, the Sjöstrand method becomes extremely fast if the integral of the reaction rate from a single pulse is split into two parts. These two integrals distinguish between the neutron counts during and after the pulse period. To conclude, when the facility is driven by a spontaneous fission neutron source, the timestamps of the detector neutron counts can be obtained up to the nanosecond precision using MCNP6, which allows obtaining the Rossi and Feynman distributions.

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

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

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1422765

Alternate ID(s):: OSTI ID: 1550620

Journal Information:: Progress in Nuclear Energy, Journal Name: Progress in Nuclear Energy Journal Issue: PC Vol. 101; ISSN 0149-1970

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (12)

Accuracy of reaction rates in the accelerator-driven system with 14MeV neutrons at the Kyoto University Critical Assembly Pyeon, Cheol Ho; Takemoto, Yuki; Yagi, Takahiro Annals of Nuclear Energy, Vol. 40, Issue 1 https://doi.org/10.1016/j.anucene.2011.10.011	journal	February 2012
Conceptual design of multi-targets for accelerator-driven system experiments with 100-MeV protons Takahashi, Yoshiyuki; Azuma, Tetsushi; Nishio, Teiji Annals of Nuclear Energy, Vol. 54 https://doi.org/10.1016/j.anucene.2012.10.018	journal	April 2013
Correction factor for the experimental prompt neutron decay constant Talamo, Alberto; Gohar, Y.; Sadovich, S. Annals of Nuclear Energy, Vol. 62 https://doi.org/10.1016/j.anucene.2013.06.035	journal	December 2013
Monte Carlo and deterministic calculation of the Bell and Glasstone spatial correction factor Talamo, Alberto; Zhong, Zhaopeng; Gohar, Yousry Computer Physics Communications, Vol. 183, Issue 9 https://doi.org/10.1016/j.cpc.2012.04.009	journal	September 2012
Pulse superimposition calculational methodology for estimating the subcriticality level of nuclear fuel assemblies Talamo, Alberto; Gohar, Y.; Rabiti, C. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 606, Issue 3 https://doi.org/10.1016/j.nima.2009.04.029	journal	July 2009
MCNPX, MONK, and ERANOS analyses of the YALINA Booster subcritical assembly Talamo, Alberto; Gohar, Y.; Aliberti, G. Nuclear Engineering and Design, Vol. 241, Issue 5 https://doi.org/10.1016/j.nucengdes.2011.03.006	journal	May 2011
Perspectives of research and development of accelerator-driven system in Kyoto University Research Reactor Institute Pyeon, Cheol Ho; Yagi, Takahiro; Takahashi, Yoshiyuki Progress in Nuclear Energy, Vol. 82 https://doi.org/10.1016/j.pnucene.2014.07.028	journal	July 2015
Static and Kinetic Experiments on Accelerator-Driven System with 14MeV Neutrons in Kyoto University Critical Assembly Pyeon, Cheol Ho; Hervault, Morgan; Misawa, Tsuyoshi Journal of Nuclear Science and Technology, Vol. 45, Issue 11 https://doi.org/10.1080/18811248.2008.9711906	journal	November 2008
JENDL-4.0: A New Library for Nuclear Science and Engineering Shibata, Keiichi; Iwamoto, Osamu; Nakagawa, Tsuneo Journal of Nuclear Science and Technology, Vol. 48, Issue 1 https://doi.org/10.1080/18811248.2011.9711675	journal	January 2011
Monte Carlo and Deterministic Neutronics Analyses of YALINA Thermal Facility and Comparison with Experimental Results Talamo, Alberto; Gohar, Yousry; Kiyavitskaya, H. Nuclear Technology, Vol. 184, Issue 2 https://doi.org/10.13182/NT13-A22310	journal	November 2013
Rossi-alpha experiment in the IPEN/MB-01 research reactor Kuramoto, R.; Santos, Adimir dos; Jerez, Rogério Brazilian Journal of Physics, Vol. 35, Issue 3b https://doi.org/10.1590/S0103-97332005000500007	journal	January 2005
Status of the JEFF Nuclear Data Library Koning, A. J.; Koning, E.; Dean, J. Journal of the Korean Physical Society, Vol. 59, Issue 2(3) https://doi.org/10.3938/jkps.59.1057	journal	August 2011

Cited By (2)

Calculation of the prompt neutron decay constant for the KUCA facility driven by a stationary or pulsed external neutron source Talamo, Alberto; Gohar, Yousry; Yamanaka, Masao Journal of Nuclear Science and Technology, Vol. 57, Issue 2 https://doi.org/10.1080/00223131.2019.1651232	journal	August 2019
Paralyzable and non-paralyzable dead-time corrections for the neutron detectors of the KUCA facility driven by external neutron sources Talamo, Alberto; Gohar, Yousry; Yamanaka, Masao Journal of Nuclear Science and Technology, Vol. 57, Issue 2 https://doi.org/10.1080/00223131.2019.1659875	journal	September 2019

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Advances in the computation of the Sjöstrand, Rossi, and Feynman distributions

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