What happened when medical staff in Beijing, China wore over-apron dosemeters?

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Abstract
The wearing method of personal dosemeters for medical staff changed from under to outside the operator’s protective apron in April 2020. We measured the radiation dose Hp(10) for medical staff in Beijing from September 2020 to October 2021. The study population consisted of 3291 medical staff. All participants were divided into three groups. After excluding unusually low doses, the collected data higher than the detection limit involved 811 (7.8%) of 10 395 readings from 479 (14.6%) of 3291 staff. The mean equivalent dose was 1.4 mSv/3 months, with an SD of 2.3 mSv. The calculated average annual effective doses of radiation workers in the three groups after the interventional procedures from September 2020 to October 2021 ranged from 0.47 to 0.63 mSv/year, with median values of 0.32, 0.23 and 0.26 mSv/year, respectively.
Funding Information
  • Capital’s Funds for Health Improvement and Research (2022-2G-3019)
  • Construction Project of High-level Public health Technical Personnel in Beijing

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