01936nam 2200373 450 99627987970331620231206173705.00-7381-4163-110.1109/IEEESTD.1980.79669(CKB)3780000000089105(NjHacI)993780000000089105(EXLCZ)99378000000008910520231206d1980 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierANSI Std N42.12-1980 American National Standard Calibration and Usage of Sodium Iodide Detector Systems /Institute of Electrical and Electronics EngineersNew York, New York :IEEE,1980.1 online resource (11 pages)Methods are established for performance testing, calibration, and use of sodium iodide detector systems for the measurement of gamma-ray emission rates of radionuclides, assay for radioactivity, and the determination of gamma-ray energies. Both energy calibration and efficiency calibration are covered. Three techniques are considered: total spectrum counting, which employs a system that counts all events above a low-energy threshold; single-channel analyzer counting, which employs a system with a counting window that establishes upper and lower energy boundaries; and multichannel analyzer counting, which employs a system utilizing multiple counting windows.ANSI Std N42.12-1980: American National Standard Calibration and Usage of Sodium Iodide Detector SystemsGermanium diodesStandardsGamma raysMeasurementStandardsGermanium diodesStandards.Gamma raysMeasurementStandards.621.381522NjHacINjHaclDOCUMENT996279879703316ANSI Std N42.12-19802580869UNISA