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1 实测的必要性射线照相底片上的图像是射线照相检验的结果,而图像质量的好坏直接影响检验灵敏度。射线照相胶片是射线照相检验所用的记录介质。但此记录介质的特性还与所用增感屏和显影条件相关。标准ISO11699 1:1998[1]和ASTME1815—1996[2]把胶片和所用增感屏及显影条件组
1 The necessity of measurement Radiographic film on the image is the result of radiographic test, and the quality of the image directly affects the test sensitivity. Radiographic film is a recording medium used for radiographic examination. However, the characteristics of this recording medium are also related to the sensitizing screen and developing conditions used. Standard ISO11699 1: 1998 [1] and ASTME1815-1996 [2] The film and the sensitization screen and development conditions used in the group