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Calibration of a 5x5 NaI(Tl) for Prompt In-Situ Gamma-ray Spectrometry System

P.E. Biere

P.E. Biere

Department of Physics, Niger Delta UniversityWilberforce Island, Nigeria
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Biere, P.E.
, 
J.O. Aina

J.O. Aina

Department of Physics, Federal University of Agriculture AbeokutaNigeria
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Aina, J.O.
, 
M.O. Olaoye

M.O. Olaoye

Department of Physics, Lagos State UniversityNigeria
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Olaoye, M.O.
 and 
A.O. Mustapha

A.O. Mustapha

Department of Physics, Federal University of Agriculture AbeokutaNigeria
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Mustapha, A.O.
  
Aug 06, 2023
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Article Category: Original Scientific Article
Published Online: Aug 06, 2023
Page range: 1 - 5
Received: May 05, 2021
Accepted: Aug 16, 2021
DOI: https://doi.org/10.2478/rmzmag-2021-0001
Keywords
© 2021 P.E. Biere et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1:

Spectrum obtained during calibration showing gamma lines of the primordial radionuclides.
Spectrum obtained during calibration showing gamma lines of the primordial radionuclides.

In-situ conversion factors_

Radionuclide No∅(cpsγm−2s−1) {{{N_o}} \over \emptyset}\left({{{cps} \over {\gamma {m^{- 2}}{s^{- 1}}}}} \right) ∅A(γm−2s−1Bqkg−1) {\emptyset \over A}\left({{{\gamma {m^{- 2}}{s^{- 1}}} \over {Bqk{g^{- 1}}}}} \right) NfNo {{{N_f}} \over {{N_o}}} NfA(cpsBqkg−1) {{{N_f}} \over A}\left({{{cps} \over {Bqk{g^{- 1}}}}} \right)
40K 0.013 0.433 0.895 0.005
238U 0.008 0.616 1.647 0.008
232Th 0.001 1.451 1.045 0.002
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