Xeroradiographyの研究(第3報) : 濃度分布の定量化と被曝量軽減への試み

概要

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The authors have reported on the study of the principle and a part of medical application of Xeroradiography. (1). Se sensitive plate has similar sensitivity to X-Ray film, however, in fact, it can not be used with the intensifing screen without special divice as it apply to statical electricity, therefore, it has greatly defection for medical application of Xeroradiography that Se sensitive plate ha very lower sensitivity than the combination of X-Ray film and intensifing screen has. Cu and Al filterin addition reduce the exposed dose without changing original X-Ray exposure factors. It is concluded that the technique of filter addition is value in reducing the exposed dose for medical application of Xeroradiography. (2). There are many discussion of edge effect, however, there are little discussion of density distribution of Xeroradiography. Radiograph is negative picture which is made by X-Ray film and Xeroradiograph is positive picture which is made by made by Se sensitive plate, that is, Radiograph has transmission density and Xeroradiograph has reflection density. Then the reflection density were caluculated and was compared relatively, not absolutely, with transmission densiety of Radiograph. It is improved that the reflection density distribution of Xerodiograph comes to singularity which has narrow range as compared with the transmission density distribution of Radiograph.
公益社団法人日本放射線技術学会の論文
1968-10-31