Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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Effects of the Scattered Radiation on Image Quality and Exposure Dose in Chest Radiography

흉부X선촬영시(胸部X線撮影時) 산란선(散亂線)이 화질(畵質)과 피폭선량(被曝線量)에 미치는 영향(影響)

  • Iino, Yu (Institute of Chemotherapy) ;
  • Hayashi, Taro (Dept. of Radiotechnology, The Chemotherapby Institute Hospital) ;
  • Ishida, Yuji (Dept. of Radiotechnology, The Chemotherapby Institute Hospital) ;
  • Maeda, Mika (Dept. of Radiotechnology, The Chemotherapby Institute Hospital) ;
  • Sakurai, Tatsua (Dept. of Radiotechnology, The Chemotherapby Institute Hospital) ;
  • Lee, Man-Koo (Dept. of Radiotechnology, The Chemotherapby Institute Hospital) ;
  • An, Bong-Sun (Dept. of Radiotechnology, The Chemotherapby Institute Hospital) ;
  • Kim, Jung-Min (Dept. of Radiotechnology, The Chemotherapby Institute Hospital)
  • 반야유 (일본 화학요법연구소) ;
  • 임태랑 (일본 화학요법연구소부속병원 방사선실) ;
  • 석전유치 (일본 화학요법연구소부속병원 방사선실) ;
  • 전전미향 (일본 화학요법연구소부속병원 방사선실) ;
  • 앵정달야 (일본 화학요법연구소부속병원 방사선실) ;
  • 이만구 (일본 화학요법연구소부속병원 방사선실) ;
  • 안봉선 (일본 화학요법연구소부속병원 방사선실) ;
  • 김정민 (일본 화학요법연구소부속병원 방사선실)
  • Published : 1993.12.30
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Abstract

To investigate relationships between image guality and exposure dose, Chest X-ray films were evaluated for the following points:how much scattered radiation can affect reduction in image quality and can be permissible diagnostically? For this purpose using a test charts and Burger's phantoms. The visual evaluation of their X-ray films and the measurements of scattered radiation were carried out. The dose of scattered radiation ranging from 20 to 25% was found to be for nothing in any diagnostic obstacle. In this range, surface doses were low of 17, 21, and $25{\mu}Gy$ for The thickness of the chest of 15, 20 and 25 cm respectively. Comparison of these high voltage X-ray films with low voltage ones showed a surface dose rate of 1:11.7. Therefore, X-ray quality, photosensitive materials(film and screen) and grid should be selected very carefully for the purpose of reduction in exposure dose.

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