INDC(SEC)-46/U+R+F+SIN DC INTERNATIONAL NUCLEAR DATA ...

I. iv
3. Yu.G. Bobkov, L.T. Pyatnitskaya and L.N. Usachev, "Planning
of experiments and evaluations on neutron data for reactors "
The Metrology of Neutron Radiation in Reactors and Accelerators.
(Proc. Gonf., Moscow, 1974), Report FEI-^27 (1974) (in Russian).
English translation to be published as INDC(CCP) document.
4. L.N. Usachev, "Unique definition of nuclear data accuracy"
7th INDC Meeting, Lucas Heights, 1974, Proceedings in preparation
(in English). Report FBI-537 (1974) (in Russian).
M.N. Nikolaev's requests
Basic demands for accuracy of
are 1 and 1.6 percent, respectively.
and BR prediction
The requests are formulated for the totality of microscopic
data without taking into account the results of
integral experiments. Therefore, these requests are, as a
rule, of the second priority.
The comparatively less demandng accuracies specified in
this set of requests are stipulated by an assumption about
the sense of uncertainties which differs from the assumption
used in Usachev's requests. In this set of requests complete
correlation of uncertainties within each group in the ABBN
26-group set and full statistical independence of uncertainties
of neighbouring groups is supposed.
Correlation of uncertainties for different isotopes,
cross sections and v values is taken into account by assuming
as standards the U-235 fission cross section and v of Cf-2^2.