The development of nuclear science and technology has greatly promoted the development of medical, agricultural, industrial and other industries. However, it is inevitable that more and more radiation safety problems are also accompanied. Accurate measurement of nuclear radiation dose is beneficial to the development of radiation safety. In this paper, based on the Optically Stimulated Luminescence (OSL) technology, the medium and coarse quartz tablets of 38 - 63 μm and 74 - 150 μm were prepared to monitor the air absorbed dose rate, and the three OSL equivalent dosimetry methods of Single-aliquot Regenerative-dose (SAR), Standardized Growth Curve (SGC) and Simplified Multiple Aliquot Regenerative-dose (SMAR) were used to calculate the air absorbed dose rate in the environment where the quartz samples were located. The monitoring results under each measurement condition are compared with the measurement results of the ionization chamber. The results show that: When SAR and SGC equivalent dosimetry methods were used, the dose rate measurement results of medium particle quartz samples were close to those of the air ionization chamber, and the relative errors were ？1.91% and ？3.62%, respectively, while the relative errors of coarse particle quartz samples were more than 10%. When SMAR equivalent dosimetry method was used, the relative deviation between the measured results of medium and coarse quartz samples and the measured results of the air ionization chamber was more than 30%. Therefore, it is recommended to use 38 - 63 μm medium particle quartz tablets to monitor air absorbed dose rate, and SAR and SGC are more suitable for equivalent dose measurement methods.
Cite this paper
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