Gamma spectral analysis method based on lanthanum bromide scintillation crystal for seawater

Maotong Hao; Yingying Zhang; Bingwei Wu; Xiandong Feng; Hongfan Wu; Jing Zeng

doi:10.1117/12.3041036

11 September 2024 Gamma spectral analysis method based on lanthanum bromide scintillation crystal for seawater

Maotong Hao, Yingying Zhang, Bingwei Wu, Xiandong Feng, Hongfan Wu, Jing Zeng

Proceedings Volume 13253, Fourth International Conference on Signal Image Processing and Communication (ICSIPC 2024); 132530H (2024) https://doi.org/10.1117/12.3041036
Event: 4th International Conference on Signal Image Processing and Communication, 2024, Xi'an, China

Abstract

Lanthanum bromide scintillation crystal gamma spectrometer detectors, compared to more traditional sodium iodide scintillation crystal gamma spectrometer detectors, have better energy resolution and detection efficiency. They are considered as a potential replacement for traditional sodium iodide detectors in the field of in-situ automatic monitoring of the ocean. However, they have drawbacks such as self-radioactivity, which can affect the measurement spectrum lines and subsequently impact the calculation of characteristic peak areas of the analyte nuclides and the results of activity analysis. This paper selects appropriate background subtraction methods for lanthanum bromide detectors' self-radioactivity and studies gamma spectral analysis methods for seawater, including spectrum smoothing, peak searching, and peak area fitting. Through simulated seawater gamma spectral data analysis experiments, it is demonstrated that the established spectral analysis methods can achieve accurate qualitative and quantitative analysis of radioactive nuclides in seawater, meeting the requirements for real-time and effective monitoring of the marine radioactive environment.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Maotong Hao, Yingying Zhang, Bingwei Wu, Xiandong Feng, Hongfan Wu, and Jing Zeng "Gamma spectral analysis method based on lanthanum bromide scintillation crystal for seawater", Proc. SPIE 13253, Fourth International Conference on Signal Image Processing and Communication (ICSIPC 2024), 132530H (11 September 2024); https://doi.org/10.1117/12.3041036

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