Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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A Study on Filter Effect on Improvement of Chest Radiography

Filter effect를 이용(利用)한 Chest Radiography

  • Hayaahi, Taro (Dept. of Radiotechnology, Chemotherapeutic Institute Hospital, Chiba Prefecture in Japan) ;
  • Ishida, Yuzi (Dept. of Radiotechnology, Chemotherapeutic Institute Hospital, Chiba Prefecture in Japan)
  • 임태낭 (일본 화학요법연구소부속병원 방사선실) ;
  • 석전유치 (일본 화학요법연구소부속병원 방사선실)
  • Published : 1984.12.15
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Abstract

In the present study, we determined reduction value of radiation on chest film by film method and made a reduction curves. The reduction radio in exposure to radiation was induced by comparative investigation of characteristic curves and reduction one. Basing on these result, we could reduce a radiation dose on body surface in 50% at the time of chest radiography, if 17.8mm aluminium or 0.87mm copper filter were used in addition to conventional filter at 140KV tube voltage. The present study further revealed that the additional use of the aluminium or copper filter at the time of high voltage radiography in chest facilitates to identify an image of some pathologic focus overlapping wist clavicle and ribs.

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