A General Purpose Log Counting Rate Meter Model B (open access)

A General Purpose Log Counting Rate Meter Model B

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.
Date: November 1, 1954
Creator: Stone, R. S. & Wade, E. J.
System: The UNT Digital Library
A Log and Period Amplifier for Reactor Control (open access)

A Log and Period Amplifier for Reactor Control

Abstract: "This report is a brief description of the most recent developments in logarithmic amplifiers and period amplifiers at the Knolls Atomic Power Laboratory. The theory of operation and circuit design are discussed. The operational characteristics of the amplifiers are greatly improved over those of earlier models by the use of feedback circuits and compensating circuits."
Date: October 12, 1954
Creator: Stone, R. S. & Wade, E. J.
System: The UNT Digital Library
Self-Shielding Measurements in PPA-20 (open access)

Self-Shielding Measurements in PPA-20

From Introduction: "The self-shielding characteristics of a number of absorbers and of U-235 and U-238 have been investigated in PPA-20 (66°). Most of the measurements have been made in Ring 3 at the core mid-plane. The foil doubling technique was employed. Particular attention was given to 'thin' foil regions for the purpose of extrapolating the data to zero thickness."
Date: September 9, 1954
Creator: King, J. S.
System: The UNT Digital Library