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http://dx.doi.org/10.5762/KAIS.2013.14.4.1871

Development and Radiation Shield effects of Dose Reduction Fiber for Scatter ray in CT Exams  

Kim, Sunghwan (Department of Radiologic Science, Cheongju University)
Kim, Yong Jin (Department of Radiology, Kyungju Dongsan Hospital)
Kwak, Jong Suk (Buffalo Company Ltd.)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.4, 2013 , pp. 1871-1876 More about this Journal
Abstract
In this study, we developed and characterized the shielding properties of dose reduction fiber (DRF, Buffalo Co.) sheet during brain and chest CT examinations. The DRF sheet was composed of $1{\sim}500{\mu}m$ oxide Bismuth ($Bi_2O_3$) and 5 ~ 50 nm nano-barium sulfate ($BaSO_4$). Phantom and clinical studies were performed for characterization of the DRF shielding properties. In clinical study, we measured doses of eye, chest, abdomen and reproductive system of 60 patients in 3 hospitals during brain and chest CT examinations. We could determined the shielding effect of the DRF by comparing the doses when we used the DRF sheet or not. When we used the sheet during CT examination, the scattered dose were reduced about 20~50%. So, we suggest that the fiber should be used in radiological examinations for reducing patients doses.
Keywords
CT; Dose reduction fiber; Patient dose; Scatter ray; Shield;
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  • Reference
1 ICRP, The 2007 Recommendations of the International Commission on Radiological Protection, Pub. 103, 2007.
2 ICRP, Radiological Protection and Safety in Medicine, (73), Pergamon Press, Oxford, 1996.
3 ICRP, Recommendations of International Commission on Radiological Pretection, (60), Pergamon Press, Oxford, 1991.
4 ICRP, Protection of the patients in Diagnostic Radiology, Pub.34, Pergamon Press, Oxford, 1982.
5 Chang Shu Chen, Radiation shield sheet, US 2004/0245484 A1, 2004.
6 Igor Sepanovich, X-ray absorbing material and variants, 01020874, 2005.
7 S.C. Seo, A method manufacture shield clothing radiation, Korea Intellectual Property Office, Patient No. 1019940001934, 1998.
8 J. H. Hubbell and S. M. Seltzer, Tables of X-Ray Mass Attenuation Coefficients and Mass Energy-Absorption Coefficients from 1 keV to 20 MeV for Elements Z=1 to 92 and 48 Additional Substances of Dosimetric Interest, National Institute of Standards and Technology, http://www.nist.gov/pml/data/xraycoef/index.cfm, 2011.
9 J. S. Kwak, Y. J. Kim., Manufacturing Method Of Fabric For Shielding Radiation, Fabric For Shielding Radiation And The Clothes Including The Same, Korea Intellectual Property Office, Patient No. 1010893230000, 2011.
10 Korea Food and Drug Adminstration, Guideline of Patients Eose in Chest X-ray Examination, Series of Radiation Safety (17), pp.20-23, 2008.
11 Korea Food and Drug Adminstration, Guideline of Patients Eose in CT Examination, Series of Radiation Safety (19), pp.8-9, 2009.
12 IAEA, International Basic Safety Standards for Protection Against Ionizing Radiation and for the Safety of Radiation Sources, Safety Series, No.115, 1996.