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| Investigation and analysis of individual dose level of occupational external exposure of interventional radiology workers from 2016 to 2017 |
| ZHANG Weiwei1, ZHANG Yu2, SHI Yiting2, YANG Meng2, MA Chao3, LIANG Ruifeng1 |
1. Shanxi Medical University, Taiyuan 030001 China;
2. Shijiazhuang Occupational Disease Prevention and Treatment Hospital;
3. Shijiazhuang Eighth People's Hospital |
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Abstract Objective To investigate the individual dose level and protection status of occupational external radiation of interventional radiology staff, and to provide scientific basis for strengthening the radiation protection and supervision management of interventional radiology staff. Methods The Thermo Luminescence dosimetry(TLD)of LiF (Mg,Cu,P)was used to monitor the personal dose equivalent Hp(10)of occupational external exposure of the interventional radiology staff, and the X, γ diffuse ray patrol instrument 451P was used to detect the air kerma rate of the DSA equipment in the see-through protection zone. Results In 2016, a total of 757 occupational external exposures for interventional radiology were monitored, and 536 people were effectively monitored. The effective monitoring rate was 70.81%, and the per capita annual dose equivalent (mSv) was 1.29 mSv. In 2017, a total of 1,123 people were monitored and 309 people were effectively monitored. The effective monitoring rate was 27.52%, and the per capita annual dose equivalent (mSv) was 1.47 mSv; the difference of the per capita annual dose equivalent among radiationstaff was statistically significant in different positions in 2017(χ2=11.612, P<0.01).The total air kerma rate in the second surgeon position was higher than the first surgeon position,and the head air kerma energy value was higher than other positions. Conclusion The personal dose of external radiation for interventional radiology staff in 2016-2017 is at a lower dose level, but the effective monitoring rate was low. The radiation protection work still needs to be continuously improved, and the emphasisshould be on strengthening radiation protection training for interventional radiology staff and their manage.
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Received: 23 October 2018
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