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Evaluation of Reductive Effect of Exposure Dose by Using Air Gap Apron in Nuclear Medicine Related Work Environment
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 Title & Authors
Evaluation of Reductive Effect of Exposure Dose by Using Air Gap Apron in Nuclear Medicine Related Work Environment
Lee, Wang-Hui; Ahn, Sung-Min;
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 Abstract
In this study, we measured the dose reaching the OSLD dosimeter by using the regular lead apron, and air gap apron through 3 experiments, and researched the reductive effect of air gap apron on exposure dose based on the 140 keV gamma ray radiating from , which is the most commonly used in nuclear medicine. As a result, when the gap between the dosimeter and 0.2mm lead plate is 0 Cm, the average value of 10 dosimeters was 0.515 mSv, and when the gap between the dosimeter and lead plate is 20 Cm, the average value of 10 dosimeters was 0.138 mSv, which shows reductive effect of dose as much as 0.388 mSv. When the gap between the dosimeter and 0.5mm lead plate is 0 Cm, the average value of 10 dosimeters was 0.296 mSv, and when the gap between the dosimeter and lead plate is 20 Cm, the average value of 10 dosimeters was 0.075 mSv, which shows reductive effect of dose as much as 0.221 mSv. As we check the cumulative dosage for 3 days, the lead apron without air layer shows average 0.239 mSv, and the air gap apron shows 0.176 mSv, which is actually reduced by 0.062 mSv. As we check the cumulative dosage for a month, the lead apron without air layer shows 0.59 mSv, and the air gap apron shows 0.54 mSv, which is reduced by 0.05 mSv.
 Keywords
Air Gap Apron;Nuclear Medicine;
 Language
Korean
 Cited by
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한국방사선학회논문지, 2015. vol.9. 7, pp.459-465 crossref(new window)
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PET/CT 업무 환경에서 선원 취급 시 Apron의 실효성 평가,조용인;예수영;김정훈;

대한방사선기술학회지:방사선기술과학, 2015. vol.38. 3, pp.237-244 crossref(new window)
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Simulation of Energy Absorption Distribution using of Lead Shielding in the PET/CT, Journal of the Korean Society of Radiology, 2015, 9, 7, 459  crossref(new windwow)
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