Abstract: This report is a brief description of a general purpose logarithmic counting rate meter developed at the Knolls Atomic Power Laboratory. The theory of operation and the circuit design are discussed. The use of a diode as a logarithmic element in the integrating circuit allows extremely accurate counting rate determinations over a five decade range.

This report evaluates six public water-supple systems in Schenectady County to create a recommendation of how to monitor these sites. It contains maps and tables.