Author/Authors :
Coulon، نويسنده , , R. and Normand، نويسنده , , S. H. Ban، نويسنده , , G. and Barat، نويسنده , , E. and Montagu، نويسنده , , T. and Dautremer، نويسنده , , T. and Brau، نويسنده , , H.-P. and Dumarcher، نويسنده , , V. V. MICHEL، نويسنده , , M. and Barbot، نويسنده , , L. and Domenech، نويسنده , , T. and Boudergui، نويسنده , , K. and Bourbotte، نويسنده , , J.-M. and Jousset، نويسنده , , P. and Barouch، نويسنده , , G. and Ravaux، نويسنده , , S. and Carrel، نويسنده , , F. and Saurel، نويسنده , , N. and Frelin-Labalme، نويسنده , , A.-M. and Hamrita، نويسنده , , H. and Kondrasovs، نويسنده , , V.، نويسنده ,
Abstract :
Previous works on pressurized water reactors show that the nitrogen 16 activation product can be used to measure thermal power. Power monitoring using a more stable indicator than ex-core neutron measurements is required for operational sodium-cooled fast reactors, in order to improve their economic efficiency at the nominal operating point. The fluorine 20 and neon 23 produced by (n,α) and (n,p) capture in the sodium coolant have this type of convenient characteristic, suitable for power measurements with low build-up effects and a potentially limited temperature, flow rate, burn-up and breeding dependence.
ethod was tested for the first time during the final tests program of the French Phénix sodium-cooled fast reactor at CEA Marcoule, using the ADONIS gamma pulse analyzer. Despite a non-optimal experimental configuration for this application, the delayed gamma power measurement was pre-validated, and found to provide promising results.
