Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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A new dead-time determination method for gamma-ray detectors using attenuation law

  • Akyurek, T. (Department of Physics, Faculty of Art and Science, Marmara University)
  • Received : 2021.02.04
  • Accepted : 2021.06.26
  • Published : 2021.12.25
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Abstract

This study presents a new dead-time measurement method using the gamma attenuation law and generalized dead-time models for nuclear gamma-ray detectors. The dead-time of the NaI(Tl) detection system was obtained to validate the new dead-time determination method using very thin lead and polyethylene absorbers. Non-paralyzing dead-time was found to be 8.39 ㎲, and paralyzing dead-time was found to be 8.35 ㎲ using lead absorber for NaI(Tl) scintillator detection system. These dead-time values are consistent with the previously reported dead-time values for scintillator detection systems. The gamma build-up factor's contribution to the dead-time was neglected because a very thin material was used.

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References

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