Abstract:
A continuous ratemeter having a digital output is described. The ratemeter has relatively long integration periods while producing a substantially continuous output. The ratemeter develops a delayed replica of the input pulse train and can indicate differential as well as integral count rates.
Abstract:
A gas filled probe is positioned within a reactor to intercept gamma rays developed therein. The gamma rays above a predetermined threshold energy level develop Compton recoil electrons in the gas and tube with velocities greater than the velocity of light in the gas. The Cherenkov radiation resulting from the slowing down of the electrons is detected and measured by a photomultiplier to measure the power level of the reactor.