Prompt Fission Neutron Spectra of Actinides
An IAEA Nuclear Data Section Co-ordinated Research Project 2010-2014
INFORMATION ON THIS WEB PAGE IS FOR EXCLUSIVE USE BY THE CRP PARTICIPANTS. THE DATA FROM THIS WEB PAGE SHOULD NOT BE QUOTED OR USED WITHOUT THE EXPLICIT CONSENT OF THE CONTRIBUTING AUTHOR.
This is a working space for participants in the IAEA CRP on "Prompt Fission Neutron Spectra of Actinides".
General information on the project is available here.
Draft of summary of the CRP meeting held in Oct. 2013, and scheduled tasks toward the final Technical document is available here.
Results of thermal criticality benchmarks (solutions) for new U5th PFNS evaluations are available here. (A. Trkov and R. Capote)
Plots of calculated IRDFF reaction rates for new U5th PFNS evaluations are available here. (A. Trkov and R. Capote)
***NEW*** U-235 ENDF/B-VII.1 evaluation with updated fission spectra are available under the tab "New PFNS evaluations..." on the link "Files" for each author. Standard nomenclature is of the form "e71_'author'.end"
for the ENDF files and "U235_e71_'author'.zip" for the ACE files. In addition, the author 'Talou_n3" refers
to the file with updated fission spectra and reduced thermal nu-bar.
PFNS experimental data
U235 (Kornilov) Dec 2013 (1st version from Jan 2011):Revised experimental database for U-235 (for several incident energies) provided by N. Kornilov is available here.
U235,U233,Pu239 and U233 thermal Jan 2011:
Revised experimental database at the thermal point with estimated covariances for U-235,U-233,Pu-239 and U-233 prepared by W. Mannhart and V. Pronyaev is available here. All data are given as a ratio to Maxwellian spectrum for T=1.32 MeV. This database is expected to be consistent with Kornilov revised data, but consistency has not been checked. No correlations between different experiments are given, but they clearly exists. Considered datasets: Starostov et al 83 (all three sets), Bojcov et al 83, Lajtai et al 85, Kornilov et al 2010, Vorobyev et al 2010, Wang et al 89, non-smoothed Mannhart Cf-252 evaluation.
Cf-252(sf) (Mannhart):
PFNS evaluated by W. Mannhart and distributed within IRDF-2002 library is available in ENDF-6 format here. Non-smoothed version of the evaluation including covariance data is also available here.
CRP meetings and documents, related IAEA meetings
3rd RCM: 21-24 October 2013 : Summary Report of the Meeting INDC(NDS)-0655 (in preparation)
2nd RCM: 13-16 December 2011: Summary Report of the Meeting INDC(NDS)-0608
1st RCM: 6-9 April 2010: Summary Report of the Meeting INDC(NDS)-0571
Consultants' Meeting: December 2008: Summary Report of the Consultants' Meeting INDC(NDS)-0541
Auxiliary information for distribution and testing:
PbP results for Cf252, U235, and Pu239 using GEF, CGMF and experimental fission yields (provided by A. Tudora on 20/11/2013)
Model-generated Fission-Fragment Yield data by GEF Monte-Carlo code (Schmidt)
Model-generated Fission-Fragment Yield data by CGMF Monte-Carlo code (Talou)
Experimental Fission-Fragment Yield data (compiled by Tudora and Kornilov)