Standard No.:	GB/T 24791.1-2009
English Name:	Photography—Sensitometry of screen/film systems for medical X-radiography—Part 1:Determination of sensitometric curve shape,speed and average gradient
Chinese Name:	摄影 医疗X射线成像用屏/片系统的感光测定 第1部分：感光特性曲线形状、感光度与平均斜率的测定
Chinese Classification:	G80    Basic standards and general methods for photosensitive material
Professional Classification:	GB    National Standard
ICS Classification:	37.040.25 37.040.25    Radiographic films 37.040.25
Issued by:	AQSIQ; SAC
Issued on:	2009-12-15
Implemented on:	2010-6-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	10000 words
Price(USD):	280.00
Delivery:	via email in 1~3 business day

GB/T24791的本部分规定了医疗X 射线照相中感光曲线形状、感光度与平均斜率以及屏/片/片夹/加工系统的测定方法。本测定方法不适于如乳腺X 射线摄影术、牙科射线摄影术和直接曝光医疗放射照相系统等特殊放射照相(参见ISO5799)。片夹可以是任何形式,只要确保屏/片紧密接触,防止胶片被周围光线曝光即可。片夹可以是一种经常在实验中使用的不漏光的真空袋,或者在医疗X 线照相过程中使用的X 射线成像暗盒。