Abstracts and Available Papers Presented at the 2004 International RERTR Meeting
THE VALMONT EXPERIMENTAL PROGRAMME FOR THE NEUTRONICS
QUALIFICATION OF THE UMO/AL FUEL FOR THE
JULES-HOROWITZ-REACTOR
C. Döderlein, M. Antony, D. Blanchet, J. Di Salvo,
JP. Hudelot, N. Huot, A. Santamarina, P. Sireta, G.
Willermoz CEA Cadarache, F-13108 Saint Paul lez Durance –
France
ABSTRACT
The proper and safe estimation of the uncertainties
associated with the results of neutronics calculations
is crucial for the design studies of the future Jules
Horowitz Reactor (JHR). However, the neutronics
characteristics of this innovative core and, in
particular, the use of the new UMo/Al fuel preclude the
use of the existing qualification databases. The need
for specific experimental data for this fuel was met by
the VALMONT programme, which consisted in the precise
measurement of the reactivity effect of fuel samples in
the MINERVE reactor. These measurements, corroborated by
-spectroscopic analysis on irradiated UMo/Al fuel,
allow to qualify the HORUS3D/N neutronics calculation
route for this fuel. Moreover, the application of the
representativity method allowed to reduce the
uncertainty on the reactivity, due to the uncertainties
of the basic nuclear data of the Uranium isotopes, by a
factor of 3.
Contact: Dr. Jordi Roglans-Ribas
Technical Director, RERTR Department
Nuclear Engineering Division – 362
Argonne National Laboratory
9700 South Cass Avenue
Argonne, IL 60439
Fax: +1 630-252-5161
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