IEEE N42.15-1997

The specifications for check sources to be used in the evaluation of liquid-scintillation counter performance are included in this standard. Measures of performance considered in this standard are Counting system efficiencyReproducibility of sample and background count ratesPreparation of check sources for performance evaluationDefinitions of some terms used here are given in Clause .This standard does not cover the calculation of sample activity for quenched unknown samples. Accordingly, this standard does not deal with sample preparation, efficiency correlation (quench correction) procedures, or identification of unknown radionuclides. The purpose of this standard is to provide the user with the means of verifying the performance of typical liquid-scintillation counting systems. New IEEE Standard - Active. Tests and procedures to ensure that a liquid-scintillation counting system is producing reliable data are provided for designers and users. This standard does not cover the calculation of sample activity for quenched unknown samples, sample preparation, efficiency correlation (quench correction) procedures, or identification of unknown radionuclides.