Journal Published Online: 21 December 2005
Volume 3, Issue 3

Dosimetry Requirements for Pressure Vessel Steels Toughness Curve in the Ductile to Brittle Range

CODEN: JAIOAD

Abstract

As part of PWR life-time assessment project, a large R&D program, PV-CT50, has been carried out from 1995 to 2004, to assess pressure vessel (PV) steel's toughness curve using very large compact tension (CT) specimens (50 × 125 × 120 mm3) allowing measurements in the ductile to brittle transition range. A new high capacity irradiation rig was designed to meet the specific CT50 specimens loading requirements in the 70 MWth OSIRIS material testing reactor operated by CEA's Nuclear Energy Division at the Saclay Research Center. This paper presents the measurement and calculation developments required in these particular conditions. Spectrum characteristics and neutron flux levels were determined by a comprehensive dosimetry on mock-ups featuring activation foils and damage monitors. At the same time, a new calculation methodology based on the TRIPOLI-4.3 Monte Carlo code and IRDF-2002 dosimetry files was validated against calorimetric and neutron activation measurements.

Author Information

Carcreff, H
Commissariat à l'Energie Atomique, Saclay, DEN/DRSN, Gif sur Yvette, France
Alberman, A
Commissariat à l'Energie Atomique, Saclay, DEN/DRSN, Gif sur Yvette, France
Barbot, L
Commissariat à l'Energie Atomique, Saclay, DEN/DRSN, Gif sur Yvette, France
Rozenblum, F
Commissariat à l'Energie Atomique, Saclay, DEN/DRSN, Gif sur Yvette, France
Beretz, D
Commissariat à l'Energie Atomique, Cadarache, DEN/DER, St Paul Lez Durance, France
Lee, YK
Commissariat à l'Energie Atomique, Saclay, DEN/DM2S, Gif sur Yvette, France
Pages: 9
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JAI13455
ISSN: 1546-962X
DOI: 10.1520/JAI13455