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http://dx.doi.org/10.7742/jksr.2017.11.1.37

Calibration Examination of Dose Area Product Meters using X-ray  

Jung, Jae Eun (Department of Radiological Science, Daegu Health College)
Won, Do-Yeon (Department of Radiological Science, Daegu Health College)
Jung, Hong-Moon (Department of Radiological Science, Daegu Health College)
Kweon, Dae Cheol (Department of Radiological Science, College of Health Science, Shinhan University)
Publication Information
Journal of the Korean Society of Radiology / v.11, no.1, 2017 , pp. 37-42 More about this Journal
Abstract
We measured the absorbed dose and the area dose using an ionization chamber type of area dose product (DAP) meter and measured the calibration factor in the X-ray examination. In the indirect dose measurement method, the detector was installed in the radiation part of the X-ray equipment, and the measured value was calculated as the dose at the exposure part. The instrument used to calculate the calibration factor was an X-ray equipment (DK-550R / F, DongKang Medical Co., Ltd., Seoul, Korea). The calibration method for the calibration factor was to connect the DAP meter (PD-8100, Toreck Co. Ltd., Japan) to the calibration dosimeter tube voltage of 70 kV, tube current of 500 mA, 0.158 sec. The reference dosimeter used a semiconductor (DOSIMAX plus A, Scanditronix, $Wellh{\ddot{o}}fer$, Germany). After installing the DAP meter on the front of the multi-collimator of the ionization chamber, the calibration factor of the dosimeter was obtained using the reference dosimeter for accurate dose measurement. Experimental exposure values and values from the calibration dosimeter were calculated by multiplying each calibration factor. The calibration factor was calculated as 1.045. In order to calculate the calibration coefficient according to the tube voltage in the ionization type DAP dosimeter, the absorbed dose and the area dose were calculated and the calibration factor was calculated. The corrective area dose was calculated by calculating the calibration factor of the DAP meter.
Keywords
Absorbed dose; Calibration factor; Dose area product; X-ray;
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Times Cited By KSCI : 3  (Citation Analysis)
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