Correlations in prompt neutrons and gamma-rays from Cf-252 spontaneous fission

M. J. Marcath, T. H. Shin, A. Di Fulvio, S. D. Clarke, S. A. Pozzi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

New event-by-event fission models have prompt neutrons and gamma-rays that are correlated in time, energy, and multiplicity, however there is limited measurement data available to validate these models. Measurement of high-order fission neutron and gamma-ray coincidences is difficult and there has previously been little motivation to measure properties of both particle types simultaneously. High-order Cf-252 spontaneous fission neutron and gamma-ray coincidences were measured with a cylindrical array of 22 liquid organic and 8 NaI(Tl) scintillation detectors, 50 cm from a central axis. Waveforms were acquired and saved for post-processing using four time-synchronized CAEN V1720 digitizers. Liquid organic scintillator waveforms were analyzed with off-line pulse shape discrimination techniques to categorize neutron and gamma-ray detections. Detected multiplicity was compared with MCNPX-PoliMi simulation results, where built-in fission models and event-by-event fission models, CGMF and FREYA, have been implemented. Additionally, measured neutron energy by time-of-flight and gamma-ray energy correlated by detected multiplicity were compared to simulated results.

Original languageEnglish (US)
Title of host publicationND 2016
Subtitle of host publicationInternational Conference on Nuclear Data for Science and Technology
EditorsPeter Siegler, Wim Mondelaers, Arjan Plompen, Franz-Josef Hambsch, Peter Schillebeeckx, Stefan Kopecky, Jan Heyse, Stephan Oberstedt
PublisherEDP Sciences
ISBN (Electronic)9782759890200
DOIs
StatePublished - Sep 13 2017
Externally publishedYes
Event2016 International Conference on Nuclear Data for Science and Technology, ND 2016 - Bruges, Belgium
Duration: Sep 11 2016Sep 16 2016

Publication series

NameEPJ Web of Conferences
Volume146
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Other

Other2016 International Conference on Nuclear Data for Science and Technology, ND 2016
Country/TerritoryBelgium
CityBruges
Period9/11/169/16/16

ASJC Scopus subject areas

  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Correlations in prompt neutrons and gamma-rays from Cf-252 spontaneous fission'. Together they form a unique fingerprint.

Cite this