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KMID : 0357520180410060587
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Journal of Radiological Science and Technology
2018 Volume.41 No. 6 p.587 ~ p.594
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Development of Indirect Dosimetry by Calculation Method in the Diagnostic X-ray Equipment
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Kim Jung-Su
Kim Sung-Hwan
Jeon Min-Cheol
Ju Won-Ha
Jeong Min-Gyu
Kim Mi-Jeong
Lee Seung-Youl
Lee Tae-Hee
Seoung Youl-Hun
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Abstract
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The purpose of this study was to develop the indirect dosimetry by calculation (IDC) method for diagnostic X-ray equipment. The experiments were performed with inverter type X-ray tubes: Toshiba (E7252X, Japan) and Varian (RAD-14, USA). For the development method, we first applied the standard quality of X-ray beam shown in the TRS457 document, and second, to produce the constants of trendline for the IDC, the total filtration on X-ray beam was subdivided. Third, in order to increase the precision, the energy region was divided into the high energy region and the low energy region and developed by the IDC. In order to verify the IDC, mean dose (mR) values were measured for three Toshiba X-ray tubes and three Varian X-ray tubes at clinical medical institutions and then compared with the IDC on the 2013. As a result, compared with the previous study, the accuracy of the IDC of this study were improved by 2.71% and 9.91% in Toshiba and Varian X-ray tubes, respectively.
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KEYWORD
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Diagnostic X-ray equipment, Indirect dosimetry, Standard quality, Total filtration, X-ray tube
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