ID 51
Type S - Special purpose quantity
Sub type DOS - Dosimetry
Target 26-Fe-54
Reaction (n,a)
Quantity SIG/SPA - Cross section averaged over an incident particle energy spectrum
Incident energy 252Cf(sf)
Accuracy 2-5 %
Field(s) Dosimetry
Subfield Fast fission, D-T fusion
Accepted date 06-Oct-2017
Status Work in progress
Latest review date 28-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 spectrum-averaged cross section are missing for validation purposes, especially for improvement of the prompt fission neutron spectrum at high energy. See Cf252U235_HighThreshold.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




Additional file(s)

  1. Simakov2017 - 440.67 KB PDF
  2. Cf252U235 HighThreshold - 750.96 KB PDF