SYMPOSIA PAPER Published: 01 January 1994

Analysis of PWR Pressure Vessel Surveillance Dosimetry with McBend


Fast fluences received by four surveillance capsules in two 900-MWe PWR have been calculated with the Monte Carlo transport program MCBEND and compared with values estimated from activation measurements. First comparisons between calculation (C) and experiment (E) gave C/E values equal to 0.98/0.97/0.98/0.90. The original experimental values were based on saturation activation rates obtained from the measured activities and from the reactor power history, assigning at each operation cycle a contribution proportionnal to its time-integrated power production. A revision was then carried out in order to inlcude the effects of the fuel loadings (low leakage or out-in) in the contribution of each cycle. The revised experimental values led to C/E equal to 0.98/1.00/1.00/0.99, thus considerably reducing the scatter, and confirming the suitability of MCBEND to provide an essentially unbiassed approximation of the fast flux at the level of the surveillance capsules.

Author Information

de Wouters, RM
Tractebel Energy Engineering, Belgium
Laurent, DJ
Tractebel Energy Engineering, Belgium
D'Hondt, PJ
CEN-SCK, Belgium
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: E10
Pages: 123–131
DOI: 10.1520/STP15104S
ISBN-EB: 978-0-8031-5281-6
ISBN-13: 978-0-8031-1899-7