ficiency Calculation of NaI(Tl) 2 × 2 Well-Shaped Detector1
A. Kadum* and B. Dahmani
Spectrochemistry and Structural Pharmacology Laboratory, Chemistry Department,
College of Sciences, University of Tlemcen, Algeria
Received May 15, 2014
PHYSICAL INSTRUMENTS FOR ECOLOGY, MEDICINE, AND BIOLOGY
ISSN 0020-4412, Instruments and Experimental Techniques, 2015, Vol. 58, No. 3, pp. 429–434. © Pleiades Publishing, Ltd., 2015.
Abstract—The aim of this work to calculate the counting efficiency of NaI(Tl) 2 × 2 well-shaped scintillation detector (Canberra Inc.). The advantage of this type detector its high efficiency which used to determination the low level of radiation as natural occurring radioactive material (NORM). The gamma attenuation coefficients of natural radioisotopes and its daughters were calculated to find the three components of counting efficiency. The values of the gamma attenuation coefficients and the counting efficiencies are presented in tables and plotted the graph.