CHEREN2, the Cherenkov counting efficiency by an anisotropy detection model Original Research Article

The commercially available liquid-scintillation spectrometers are also feasible for the detection of the Cherenkov light emitted by β-rays in transparent liquids, when the maximum-point energy of the Fermi distribution is greater than the Cherenkov threshold energy. We present a second version of the program CHEREN, which applies Poisson statistics to compute the two photomultipliers counting efficiency. We redefine previous version free parameters, including two new different coefficients into the counting efficiency equation. The Frank and Tamm theory of Cherenkov radiation is applied to compute the total number of Cherenkov light photons emitted by the β-particles along their pathways.