Processing Needs

Concerning processing needs the following recommendations can be made: Encourage and support spectrum-averaged cross section measurements for data validation. For example, measurements of constants for neutron activation analysis (thermal capture and resonance integrals), astrophysics cross sections (MACS, e.g. corresponding to a 30 keV Maxwellian spectrum), 252Cf spontaneous fission spectrum averaged cross sections, etc. The latter could help to resolve many issues related to uncertainties in the capture cross section in the energy region between 100 keV and a few MeV; Continue to develop and improve web based and off-line data visualisation tools, striving for generality as well as user-friendliness; Continue to support developments for the generation of covariance data of experimental measurements as well as evaluated nuclear data; Regarding the issue of independent processing codes, the generally available PREPRO series is highly esteemed and truly valuable, but it lacks, by design the following: a module to generate scattering matrices; a module to generate temperature dependent self-shielded cross sections in the unresolved resonance region; processing of fission neutron multiplicity; treatment of covariances; Perhaps Red Cullen might be willing to undertake this work. The details of additional modules to be developed include also treatment of covariances. All these modules should be clearly identified. Enhancement of the processing of covariance matrices could be sought by acquiring and making generally available a code that is already developed (e.g. drawing from the experience in Japan)