Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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A Study of Factors Affecting the Grid-test

X선격자 성능시험에 미치는 인자의 검토

  • Lee, In-Ja (Dept. of Radiotechnology, Junior College of Public Health and Medical Technology, Korea University) ;
  • Shin, Wha-Soo (Dept. of Radiotechnology, Junior College of Public Health and Medical Technology, Korea University) ;
  • Kim, Chang-Kyun (Dept. of Radiotechnology, Junior College of Public Health and Medical Technology, Korea University) ;
  • Huh, Joon (Dept. of Radiotechnology, Junior College of Public Health and Medical Technology, Korea University) ;
  • Kang, Hong-Seok (Dept. of Radiotechnology, Incheon Junior Nursing College and Allied Health Sciences) ;
  • Park, Jun-Chul (Dept. of Radiotechnology, Incheon Junior Nursing College and Allied Health Sciences) ;
  • Yoon, Chul-Ho (Dept. of Radiotechnology, Dong Nam Junior Health College)
  • 이인자 (고려대학교 보건전문대학 방사선과) ;
  • 신화수 (고려대학교 보건전문대학 방사선과) ;
  • 김창균 (고려대학교 보건전문대학 방사선과) ;
  • 허준 (고려대학교 보건전문대학 방사선과) ;
  • 강홍석 (인천간호보건전문대학 방사선과) ;
  • 박준철 (인천간호보건전문대학 방사선과) ;
  • 윤철호 (동남보건전문대학 방사선과)
  • Published : 1987.12.20
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Abstract

Authors tested the grid functions with various thickness of acryl phantom, radiation field size and diameter of shielding lead. The results are as followed: 1. The characteristic values of grid are affected by phantom thickness, but free from radiation field size in the diagnostic useful range. 2. The quantity of scattered radiation was decreased according to the diameter of shielding lead under 20mm, and then the diameter the smaller the better, in accordance with proposed KS standard. 3. The quantity of primary radiation was increased a little at the 80mm diameter radiation field size, but did not have much differences. Therefore, it was thought that it is needed to limit beam size in case of absolute values in accordance with any standards, but it has no matter to use 100 mm diameter in case of relative values just to campare with.

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