C-E in-Core Instrumentation - Functions and Performance

The middle and late seventies were a period of maturing of the existing PWR designs for in-core instrumentation and demonstration and exploitation of its capabilities. While initially the in-core instrumentation system was primarily used for neutron flux mapping the later use of the system for continuous core limit monitoring has been very successful in increasing plant productivity. This paper discusses the uses of in-core instrumentation for monitoring and surveillance in PWRs as they have evolved over the years, reviews the performance of C-E´s in-core instrumentation, and discusses possible future developments.