ID 64
Target 15-P-31
Reaction (n,p)
Quantity SIG/SPA - Cross section averaged over an incident particle energy spectrum
Incident energy 252Cf(sf) - 235U(n,f)
Accuracy 2-5 %
Field(s) Dosimetry
Subfield Fast fission, D-T fusion
Accepted date 06-Oct-2017
Status Work in progress
Latest review date 22-Apr-2022

Dr Stanislav SIMAKOV at KIT, GER

Project (context)

IRDFF project


The International Reactor Dosimetry and Fusion File (IRDFF) aims at providing evaluated neutron dosimetry reactions validated for all applications related to fission reactors and fusion technology development [IAEA2017].



Justification document

Accurate cross sections as well as spectrum-averaged cross sections (SACS) in relevant and well-characterized neutron fields are essential for improvement and validation of the evaluated data [Simakov2017].

Comment from requester

Measurements of the 252Cf(sf)-spectrum-averaged cross section are missing for validation purposes. New measurements of the 235U(n,f)-spectrum-averaged cross section are requested to solve C/E discrepancy. See SPA_CE_Cf252U235.pdf below.


  • [IAEA2017] IAEA CRP on Testing and Improving the International Reactor Dosimetry and Fusion File (IRDFF),
  • [Simakov2017] S. Simakov, et al., “Proposals for new measurements for IRDFF community and HPRL”, September 2017.

Entry status

Work in progress (as of SG-C review of May 2018)

Main recent references

Please report any missing information to hprlinfo@oecd-nea.org