radiation - McGill Medical Physics Unit - McGill University

Approximate detection efficiencies for some commonradionuclides and detectorsRadionuclide LSC 1 PancakeGM 2NaI(Tl)Meter 3NaI(Tl)Well 4H-3C-14, S-35,P-33Cr-51, Co-57,Tc-99m, I-12520% na 5 na 5 na 550% 10% na 5 na 530% 1% 50% 50%P-32 100% 50% na 5 na 5LSC 1 : Liquid Scintillation CounterPancakeGM 2 : Hand-held survey meter with pancake GM detectorNaI(Tl) 3 : Hand-held survey meter with well-type NaI(Tl) crystalNaI(Tl) 4 : Multichannel analyzer with well-type NaI(Tl) crystalna 5 : not applicable for this group of radionuclidesRef.: http://www.stanford.edu/dept/EHS/prod/researchlab/radlaser/manual/radsafetymanual1.html