대한방사선기술학회지:방사선기술과학 (Journal of radiological science and technology)

  • 제17권2호
  • /
  • Pages.37-44
  • /
  • 1994
  • /
  • 2288-3509(pISSN)
  • /
  • 2384-1168(eISSN)
대한방사선과학회 (Korean Society of Radiological Science)
권호 표지

Hawlet Chart에 의한 화질의 정가

  • 김성수 (신구전문대학 방사선과) ;
  • 허준 (동아엑스선기계 방사선기술연구소) ;
  • 이선숙 (동아엑스선기계 방사선기술연구소) ;
  • 이인자 (동아엑스선기계 방사선기술연구소)
  • 발행 : 1994.12.15
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초록

This study was performed to verify scattered dose by collimator and block. As the results, the following conclusion have been reached ; 1. Scattered dose outside the treatment field increased with the increase of energy. 2. Shielding block cause 2 to 3 % Increase in central axis dose. 3. Scattered dose by the upper collimator was more than dose by the lower collimator. 4. It was found that optimal thickness of shielding block was 2 cm width.

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