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http://dx.doi.org/10.17946/JRST.2015.38.4.04

Effectiveness Evaluation of the Tube Voltage Measurement by using Additional Filter  

Hwang, Jun-Ho (Dept. of Radiology, Kyung Hee University Medical Center)
Lee, Kyung-Ho (Dept. of Radiology, Kyung Hee University Medical Center)
Choi, Yoon-Bong (Dept. of Radiology, Kyung Hee University Medical Center)
Kang, Byung-Sam (Dept. of Radiological Technology, Shingu College)
Publication Information
Journal of radiological science and technology / v.38, no.4, 2015 , pp. 355-363 More about this Journal
Abstract
Advancement in the medical field provides an opportunity for the development of medical equipment and also enable accurate diagnosis for the inspection and the treatment of diseases. The aging of equipment due to the frequent operation produce uncertainty in the patient exposure dose, so a quality control was implemented by establishing a safety management system on a regular basis. The x-ray tube voltage (kVp), which is directly involved in the patient exposure dose and the life of the equipment, needs periodic performance for the quality control, but it has a limitation due to the time and the cost. In this study, we proposed a new method for measuring the kVp with ease by using the Y and Cu to solve the problem of the time and cost. We also evaluated the usefulness and the effectiveness of the new method and its accuracy through the kVp measurement. After securing the condition, the amount of the tube current and evaluating the usefulness and effectiveness of kVp measured using Y and Cu. The density range used was at 0.5-1.0, kVp was in the range of ${\pm}10%$, then, we recorded the change in concentration as % of Y and Cu. This experiment showed that when Cu and Y was at 75 kVp, concentration was the same, and when the kVp was changed to 65 ~ 85 %, a gradual increase in concentration to 85 ~ 110 % was noted.
Keywords
Quality Control; kVp; Copper(Cu) and Yttrium(Y); Mass Energy Absorption Coefficients; Concentration;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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