RECYCLING FACILITY PERIODIC SAFETY REVIEW: A METHODOLOGY USED FOR THE NUCLEAR CRITICALITY SAFETY REVIEW OF GEOMETRICALLY SAFE OR FAVORABLE EQUIPMENT

摘要

In France, according to the law, all nuclear fuel cycle facilities have to undergo a Periodic Safety Review (PSR) every ten years. This paper presents the methodology used for the Nuclear Criticality Safety (NCS) Review of geometrically safe or favorable pieces of equipment of UP3-A, a used fuel recycling facility of La Hague nuclear plant,. The goal of this methodology, developed for such a large plant, is to focus on pieces of equipment for which an effort is needed to ensure Nuclear Criticality Safety. This methodology is based on the three following aspects of a PSR: conformity, aging studies and the state of the art of criticality calculations.