GOST R IEC 62494-1-2013 Medical electrical equipment Exposure index of digital X-ray imaging systems Part 1 Definitions and requirements for general radiography《医疗电气设备 X射线数字成像系统的曝光.pdf

1、 62494-1 2013 1 IEC 62494-1:2008 Medical electrical equipment Exposure index of digital X-ray imaging systems Part 1: Definitions and requirements for general radiography (IDT) 62494-12013 II 27 2002 . 184- . 1 - ( ) , 4 2 TK 411 , 3 7 2013 . 74- 4 62494-1:2008 . . 1. (IEC 62494-1:2008 Medical elect

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4、88:2004 . (IEC/TR 60788:2004, Medical electrical equipment Glossary of defined terms) 3 : 3.1 (CALIBRATION CONDITIONS): , . 3.2 (CALIBRATION FUNCTION): . 3.3 (DETECTOR SURFACE): , . ( ), - . 62220-1-2:2007, 3.3 3.4 DI (DEVIATION INDEX; DI): . 62494-12013 2 3.5 (DIGITAL X-RAY IMAGING DEVICE): , , , ,

5、 (DN, CDU) . 62220-1:2003, 3.5 , , . 3.6 (DIGITAL X-RAY IMAGING SYSTEM): , , , , , . 3.7 EI (EXPOSURE INDEX; EI): , . , , ( ). 3.8 (IMAGE RECEPTOR AIR KERMA; K): ( ). 3.9 (INVERSE CALIBRATION FUNCTION): . 3.10 DN (ORIGINAL DATE; DN): , . 62220-1:2003, 3.12 , , , . 3.11 (RAW DATA): , - . 62220-1:2003, 3.14 3.12 (RELEVANT IMAGE REGION): , , , . , . 3.13 EIT(TARGET EXPOSURE INDEX; EIT): . , , . 3.14 V (VALUE OF INTEREST; V): . , . , , . 4 4.1 62494-12013 3 . , , , : - ; - , , : 1. ;2. ;3. ;4. ;- . 1 . , . 2 , , . 3 , , , , , . 4.2 , . . . 1 . , . . 2 , . . . , . . 3 , , .