79-Au-197(n,xn) x=3-5

Requester

Dr Stanislav SIMAKOV at KIT, GER

Project (context)

IRDFF project

Impact

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].

Accuracy

5%-10%

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

The IRDFF project strives to evaluate, and eventually add to the library, high-threshold reactions with cross section plateaus located between 15/20 MeV and 100/150 MeV to meet the requirements of the accelerator-driven high-energy neutron sources. Note that it is important to know the cross section tail up to 100/150 MeV in order to allow the deconvolution of high-energy quasi-monoenergetic neutron source spectra.

References

• [IAEA2017] IAEA CRP on Testing and Improving the International Reactor Dosimetry and Fusion File (IRDFF),
  http://www-nds.iaea.org/IRDFFtest/.
• [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

Experiments

• M. Majerle, P. Bem, et al., Au, Bi, Co and Nb cross-section measured by quasimonoenergetic neutrons from p+7Li reaction in the energy range of 18-36 MeV, Nuclear Physics A 953 (2016) 139
• P. Chudoba, et al., Activation Measurements of Cross Sections for Ground and Isomeric States Production in Neutron Threshold Reactions on Y and Au, Nuclear Science and Engineering 191 (2018) 150-160
• M. Schulc, et al., Constraining high energy tail of ²³⁵U(n_th,f) prompt fission neutron spectrum, Applied Radiation and Isotopes 166 (2020) 109313
• M. Schulc, et al., Measurement of very high threshold reactions using 252Cf source, Applied Radiation and Isotopes 166 (2020) 109355