SYMPOSIA PAPER Published: 01 January 2001
STP13640S

MCBEND — A Fluence Modeling Tool

Source

Accurate assessment of neutron fluence at reactor pressure vessels and other internal components such as core shrouds is a crucial component of radiation damage studies, which are of fundamental importance in determining plant life. In recent years the Monte Carlo calculation method has become recognized as an accurate tool for such assessments. AEA Technology, through its development of the MCBEND Monte Carlo code in collaboration with BNFL, has been a key innovator in the development of the Monte Carlo method and in making these developments easily accessible to the user. Recent developments aimed at fluence modeling include a source processor, a point energy adjoint capability and geometric sensitivities. The code has been applied to fluence modeling in Magnox gas cooled reactors and PWRs for a number of years : with the work described in this paper it has now also been successfully applied to BWR fluence analysis.

Author Information

Wright, GA
AEA Technology, Winfrith Technology Centre, Dorchester, Dorset, United Kingdom
Shuttleworth, E
AEA Technology, Winfrith Technology Centre, Dorchester, Dorset, United Kingdom
Cowan, P
AEA Technology, Winfrith Technology Centre, Dorchester, Dorset, United Kingdom
Curl, IJ
AEA Technology, Winfrith Technology Centre, Dorchester, Dorset, United Kingdom
Mattsson, CG
Vattenfall (AB) Ringhals, Varobacka, Sweden
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Details
Developed by Committee: E10
Pages: 540–548
DOI: 10.1520/STP13640S
ISBN-EB: 978-0-8031-5450-6
ISBN-13: 978-0-8031-2884-2