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KMID : 1151820180120060769
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Journal of the Korean Society of Radiology
2018 Volume.12 No. 6 p.769 ~ p.776
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Evaluation of Energy Dependency for Air Kerma Area Product by RQR Beam Quality and Indirect Calibration
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Kim Jung-Su
Kim Sung-Hwan
Kim Mi-Jeong
Lee Seung-Youl
Lee Tae-Hee
Seoung Youl-Hun
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Abstract
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According IEC 60601-1 ed3.1 and IEC 60601-2-45 regulation, diagnostic X-ray equipment should be display to measured and calculated air kerma area product. On the clinical X ray equipment, air kerma area product dosimeter would like to have an evidence for dosimeter accuracy and energy dependency. This study was performed to indirect calibration and energy dependency test for attached type air kerma area product (KAP) dosimeter by RQR standards beam quality. On the RQR5 beam quality, attached KAP dosimeter error showed -7.5%, respectably. On the RQR9 beam quality, attached KAP dosimeter error showed -10.4%, respectably. All RQR beam quality, average absolute error was 8.30%±2.85%, respectably. On this study, attached KAP dosimeter was satisfied to IEC 60580 and AAPM TG 190. This calibration method of KAP dosimeter will help to performance maintain for clinical KAP dosimeter.
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KEYWORD
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Air kerma, Area product dosimeter, Energy dependency, RQR beam quality, Indirect calibration
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