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题目内容 (请给出正确答案)
单选题
S=Ro/R1所表示的是(  )。
A

阻光率

B

增感率

C

透光率

D

放大率

E

吸收率


参考答案

参考解析
解析:
增感率:指在照片上获得同一密度值1.0时不用增感屏和应用增感屏时的X线量之比,常用S来表示,即S=Ro/R1式中Ro表示不用增感屏时的X线量,R1表示应用增感屏时的X线量。
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