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KMID : 0357520150380040477
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Journal of Radiological Science and Technology
2015 Volume.38 No. 4 p.477 ~ p.482
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An Analysis of Exposure Dose on Hands of Radiation Workers using a Monte Carlo Simulation in Nuclear Medicine
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Jang Dong-Gun
Kang Se-Sik
Kim Jung-Hoon
Kim Chang-Soo
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Abstract
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Workers in nuclear medicine have performed various tasks such as production, distribution, preparation and injection of radioisotope. This process could cause high radiation exposure to wokers’ hand.The purpose of this study was to investigate shielding effect for r-rays of 140 and 511 keV by using Monte-carlo simulation. As a result, it was effective, regardless of lead thickness for radiation shielding in 140 keV r-ray. However, it was effective in shielding material with thickness of more than only 1.1 mm in 511keV r-ray. And also it doesnt effective in less than 1.1 mm due to secondary scatter ray and exposure dose was rather increased.Consequently, energy of radionuclide and thickness of shielding materials should be considered to reduce radiation exposure.
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KEYWORD
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R-ray, Monte-carlo simulation, Exposure on hands
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