連続X線に関する生体等価サンプルの線吸収係数の実験公式(IV) : 距離による補正係数ηr

概要

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In the previous papers, the best conditions to take photograph at the differnt positions were conside red to follow the 1/r^2 rule, and the correction factor to the distance r was not described. In this paper, the latter correction factor to the absoption coefficient μ is reported, measuring at three different positions using the same phantoms. The μ-values are linear to log r. The correction factor ηr to the μ-values is deduced from this relation. Then, the best photographic condi-tion is determined using μ'=μη_r, where μ is the absor p-tion coefficient calculated from the formula reported previously.
公益社団法人日本放射線技術学会の論文
1971-10-31