Information of AER WG A on improvement, extension and validation of parametrized few-group libraries for VVER-440 and VVER-1000

P. Mikoláš, Škoda JS a.s., Czech republic

20th Symposium of AER on VVER Reactor Physics and Reactor Safety (2010, Hanasaari, Espoo, Finland)
Spectral and Core Calculations


Joint AER Working Group A on ?Improvement, extension and validation of
parameterized few-group libraries for VVER-440 and VVER-1000? and AER Working
Group B on ?Core design? nineteenth meeting was hosted by V?JE a.s. in Modra – Harm?nia
(Slovakia) during the period of 20th to 22nd April 2010.
There were present altogether 12 participants from 8 member organizations and 9
papers were presented (8 of them in written form).
Objectives of the meeting of WG A are: Issues connected with spectral calculations
and few-groups libraries preparation, their accuracy and validation.
Presentations were devoted to some aspects of transport and diffusion calculations and
to the benchmark dealing with VVER-1000 core periphery power tilt.
Tam?s Park? (co-authors Istv?n P?s and S?ndor Patai Szab?) described in his
presentation ?Application of Discontinuity factors in C-PORCA 7 code?, Radoslav Zajac
(co-authors Petr Dalek and Vladim?r Ne?as) spoke about ?Fast Reactor Nodalisation in
HELIOS Code?, Gabriel Farkas presented ?Calculation of Spatial Weighting Functions of
Ex-Core Neutron Detectors for VVER-440 Using Monte Carlo Approach? and Daniel
Sprinzl (co-authors V?clav Kr?sl, Pavel Mikol
and Ji?? ?varn?) provided a definition of a
benchmark in ??MIDICORE? VVER-1000 core periphery power tilt benchmark proposal?.
Future activities are also shortly described in the end of the paper.

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