Work

A simplified γ-γ coincidence method to measure the activity of radionuclide

Year: 2025

Type: article

Abstract: A simplified γ-γ coincidence method for activity measurement when a sample containing multiple γ-ray emitters is proposed. This method can be applied when a γ-γ cascade process occurs in the radionuclide of low detection efficiency. And the activity can be calculated from the full-energy peak count rate of the cascade particles in each detector and the corresponding full-energy-full-energy coincidence count rate. To verify this simplified method, it was compared with numerous γ-γ coincidence methods using Monte Carlo simulation . Limitations and applicability of these methods are discussed. In addition, to validate this method in real environments, a digital coincidence measurement system using two NaI(Tl) detectors was developed. The measurements were performed on a standardized 60 Co source and a standardized 60 Co source in the presence of a 137 Cs standardized source.

Source: Radiation Measurements

DOI: 10.1016/j.radmeas.2025.107412

Authors: Qiankun Shao, Qingjun Zhu, Jia Li, Songlin Liu

Institutions: University of Science and Technology of China, Chinese Academy of Sciences, Hefei Institutes of Physical Science, Institute of Plasma Physics

Language: English

Topic: Radioactive Decay and Measurement Techniques

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,690

OpenAlex ID: W4407834387

FWCI: 1.915

Cites: 31

Cited by: 3

Related to: 10