X 線フィルムに関する硝酸タリウムによる潜像補力効果

概要

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We investigated the effect of the latensification technique by thallium nitrate on latest X-ray films which were used in clinical diagnosis. We observed that the relative speeds of the treated films were about 1.1〜2.7 times higher than those of the untreated ones (D=1.0), but some of the treated films had a trend to yield high fog level and uneven treatment as the effect of treatment became stronger. The treated films had a slight rising of the Wiener spectral value in comparison with the untreated films up to the 30 cycles/mm frequency. From our experimental results, it is considered that the latensification technique by thallium nitrate might be useful to intensify the image densities of the X-ray films of approximately 20〜60% under-exposure.
公益社団法人日本放射線技術学会の論文
1991-11-01