Research on temperature peak-shift correction methods for NaI (Tl) gamma spectrum / 中国辐射卫生
Chinese Journal of Radiological Health
; (6): 19-23, 2021.
Article
en Zh
| WPRIM
| ID: wpr-973712
Biblioteca responsable:
WPRO
ABSTRACT
Objective The experiment project was designed to explore the variation of NaI (Tl) gamma spectrometer channels with environmental temperature. 60Co and 152Eu were used to verify the reliability of the correction methods. Methods Two correction methods were applicated, which were curve fitting correction method and known measurement peak correction method. Results The experimental results showed that temperature changes had an effect on NaI (Tl) measured spectra peak. The relative peak will shift to the right at 5℃ by 9.6%, and to the left at 60℃ by 16%, with the reference temperature set at 25℃. The two methods are based on the channel change due to temperature changes, and they could effectively correct the temperature peak-drift. Conclusion In order to make the measured spectrum information accurate and reliable in field monitoring, it is suggested to monitor the environmental temperature so as to correct the measured data.
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Índice:
WPRIM
Idioma:
Zh
Revista:
Chinese Journal of Radiological Health
Año:
2021
Tipo del documento:
Article