THEORY OF CAMPBELL SYSTEM OF REACTOR INSTRUMENTATION

This section derives the equations that can be used to design a Camptiell (MMSV) monitor for radiation measurement. The section is divided into four parts. The first part contains the derivations and results in the most general form; these results can be applied to any system.

The second part comprises the simpler results for a system that contains one high-pass filter and one low-pass filter. The third part consists of the derivation of the signal contribution due to reactor noise. The fourth part covers the derivation of the probability of false trips, with several optional maximum allowed average signal levels and a particular trip setting; a calcula­tion of trip probability as a function of operating level with a fixed trip point setting is also included.