α/β Discrimination by Hidex Liquid Scintillation Counter and Method for LSC Spectra Reconstruction

The function of α/β discrimination is very useful for analyzing the mixed sample of α and β nuclides by the technology of liquid scintillation counting(LSC). The liquid scintillation counters with the function of α/β discrimination can be classified as Type A or Type B. Type B counters allow the adjustment of discrimination parameter after the sample measurement, which is a great convenience for α/β discrimination. Hidex liquid scintillation counter is one of Type B counters, but no new LSC spectra, including LSC spectra for α radiation and those for β radiation, is given for new discrimination parameter. This paper suggests methods of reconstructing the LSC spectra for any new discrimination parameter with the example of measuring LSC samples of 237Np or uranium. The reconstructed LSC spectra are in good agreement with those reported in literature.