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4,000원
원문정보
초록
영어
Computed Radiography(CR) is a relatively new technology that relies on an image plate(IP) as an alternate x-ray sensor to screen/film. Standard CR cassettes do not have lead foil behind the IP to control scatter radiation. The result of this study indicate that such control is needed. In most screen/film cassettes, that lines the rear of the cassette eliminates back scatter radiation. This study was performed to investigate on the effects of back scatter in CR images by size of exposure field, distance between the CR cassette and the wall of radiography room. 1. It showed artifacts from hinges and clips located on the back of CR cassette by back scatter radiation. 2. The greater effects of back scatter radiation in CR images was attributed to the greater size of exposure field and the longer distance between the CR cassette and the wall of radiography room.
목차
ABSTRACT 서론 실험기기 및 방법 1. 실험기기 2. 실험방법 실험결과 및 고찰 1. 주변조사야 크기예 따른 pixel value의 크기 변화 2. CR카셋트와 촬영실 벽면간의 거리에 따른 pixel value 의 변화 결론 참고문헌