Author:Van Wyngaardt, WM; Simpson, BRSDate:Oct 2006Four radionuclides with electron-capture-based decay schemes have been directly measured by a liquid scintillation coincidence extrapolation technique. The advantage of using (LS) counting in the 4p channel is that self-absorption does not ...Read more
Author:Simpson, BRS; Van Wyngaardt, WMDate:Oct 2006The absolute activities of the pure beta-emitters Sr-89 and Y-90 have been determined by a direct method, namely the triple-to-double coincidence ratio (TDCR) efficiency calculation technique. This undertaking has extended further the number ...Read more