Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
권호 표지

Dosimetry according to the Object Thickness

피사체(被射體)두께에 따른 선량분포(線量分布)

  • Lee, Sang-Suk (Dept. of Radiotechnology, Dong Nam Junior Health College) ;
  • Park, Sung-Ock (Dept. of Radiotechnology, Dong Nam Junior Health College)
  • 이상석 (동남보건전문대학 방사선과) ;
  • 박성옥 (동남보건전문대학 방사선과)
  • Published : 1979.07.18
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Abstract

When X-radiation passes through the human body; some is transmitted some is truly absorbed, and some is scattered. In diagnostic radiography, scattered radiation can reach the film if no protective measures are taken. This scattered ray increased density which not necessary for image formation. We studied about absorbtion, scattered ray and the way of get rid of scatter ray according to the x-ray tube kilovoltage and obtained results as follow; 1. Absorbtion ray increased proportion to KVP. 2. Scattered ray increased at high KVP and thick object. 3. Secondary radiation of the primary increased at high KVP and thick object. 4. Remove .ate of scattered ray decreased at thick object and increase at low KVP make use of 6:1 grid ratio

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