Study on the Image Quality Comparison between in Digital RT and Film RT

용접부에 대한 디지털 방사선투과영상과 필름 방사선투과영상의 상질 비교에 관한 연구

  • Park, Sang-Ki (Korea Electric Power Company Research Institute Engineering Center) ;
  • Ahn, Yean-Shik (Korea Electric Power Company Research Institute Engineering Center) ;
  • Gil, Doo-Song (Korea Electric Power Company Research Institute Engineering Center)
  • 박상기 (한국전력공사 전력연구원) ;
  • 안연식 (한국전력공사 전력연구원) ;
  • 길두송 (한국전력공사 전력연구원)
  • Received : 2011.06.13
  • Accepted : 2011.08.03
  • Published : 2011.08.30

Abstract

Conventional film radiographic test has been generally and widely used in the inspection on the weldment for quality assurance. On the other hand, since the analog RT is well known for typical time and cost consuming method with complex process of inspection, the industry has researched various ways how to improve radiographic test technology. In this study, we verified the fact that digital RT provides a lot more benefit in effectively detecting defects, ever film details, through digital processing of image enhancement, compared to film RT. As a result, we reached conclusion that digital RT is positively able to replace the film RT in industry in part or in whole.

용접부에 대한 품질 확보를 위하여 방사선투과시험을 실시하고 있으나 기존의 방사선투과시험은 필름을 사용한 아날로그 방법을 적용하고 있는데 비용과 시간이 많이 소요되고 시험 공정이 복잡하여 개선이 요구되고 있다. 본 연구에서는 용접부에 대한 디지털 방사선투과영상과 아날로그 방사선투과영상의 상질을 비교한 결과, 디지털 방사선투과영상은 디지털 영상 개선 과정으로 인하여 필름 영상에 비해 보다 세밀한 관찰을 할 수 있었다. 따라서 디지털 방사선투과시험이 개선이 요구되고 있는 기존 필름에 의한 방사선투과시험을 대체할 수 있을 것으로 평가된다.

Keywords

References

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