CCDカメラを用いたI.I.-DR装置の簡便な精度管理法

抄録

With the advancing development of CCD cameras, the I.I-DR apparatus has beenintroduced into the x-ray fluoroscopy television system.Consequently, quality control of the system has become a complicatedtask. We developed a simple, accurate method for quality control of the I.I.-DR apparatus using the CCD camera.Experiments were separately performed for the imager system [(laser imager, DDX(dynamic digital x-ray system )]and the imaging system(I.I., ND-filter, IRIS, CCDcamera).Quality control of the imager system was done by simply examining both input and output characteristics with a sliding pattern.Quality control of the imaging system was also conducted by estimating AVE(the average volume element), which was obtained using a phantom under the constant conditions.The results indicated that this simplified method is useful as a weekly quality control check of the I.I.-DR apparatus using the CCD camera.