用X射线对医用X线胶片进行感光测定时曝光条件的探讨

Exposure Conditions in Sensitometry of Medical X-ray Film by Using X-ray Beam

经过十四年的努力，国际标准化组织新近颁布了ISO9236－l：摄影术一医学放射照相屏片系统感光测定学一第一部分：感光测定曲线，感光度和平均斜率的测定，意在建议P成员采纳贯彻该标准。本文简述了该标准中的最棘手部分：X射线曝光条件，且加以了讨论。

Through 14 years' endeavor, lSO has newly published ISO 9236-1: Ph otograp hy- Se n si tom-etry of screen/film systems for medical radiography-Part 1: Determination of sensitometriccurve, speed and average gradient and suggested P-Members to initiate the appropriate actionaimed at adopting this new ISO Standard as National Sandaxd. This paper outlines the most deli-cate part of this Standard: X-ray exposure conditions together with some discussions.