Open AccessA ROD-CONDUCTION RADIOMETRIC CALORIMETER
Author(s) -
S.R. Gunn
Publication year - 1963
Language(s) - English
Resource type - Reports
DOI - 10.2172/4135526
Subject(s) - thermistor , calorimeter (particle physics) , calibration , potentiometer , thermal conduction , materials science , nuclear physics , particle detector , nuclear engineering , radiochemistry , optics , analytical chemistry (journal) , radiation , physics , detector , chemistry , electrical engineering , voltage , engineering , chromatography , quantum mechanics , composite material
A twin rod-conduction calorimeter for routine assay of small radioactive sources is described. The equilibration time is about forty minutes and the detection limit about 1 x 10/sup -4/ watt. A thermistor circuit and nonlinear potentiometer are used for the differential temperature measurement. Use of a plutonium sample for calibration is described. (auth