KS C IEC 62467-1-2012 Medical electrical equipment－Dosimetric instruments as used in brachytherapy－Part 1：Instruments based on well-type ionization chambers《医用电气设备 近距离放射治疗用剂量计 第1章 .pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS C IEC 62467 1 1： KS C IEC 62467 1:2012 2012 1 2 http:/www.kats.go.krKS C IEC 62467 1:2012 : ( ) ( ) () ( ) : (http:/www.standard.go.kr) ： ：2012 1 2 2012-0002 ： ： ( 02-509-7294) (http:/www.kats.go.kr). 10 5 , . KS C IEC 62467 1:2012 i . ii 1 1 2 1 3 .2 4 .

2、5 4.1 5 4.2 6 4.3 6 4.4 6 4.5 6 4.6 .7 4.7 .7 4.8 .8 5 9 5.1 9 5.2 9 5.3 9 5.4 9 5.5 9 5.6 .10 6 .10 6.1 .10 6.2 11 6.3 11 6.4 .12 6.5 .12 6.6 13 6.7 13 6.8 13 7 14 7.1 .14 7.2 14 8 .14 8.1 .14 8.2 14 8.3 .14 16 1 .7 2 10 KS C IEC 62467 1:2012 ii 2009 1 IEC 62467 1, Medical electrical equipment Dosi

3、metric instruments as used in brachytherapy Part 1： Instruments based on well-type ionization chambers , . KS C IEC 62467 1:2012 1： Medical electrical equipment Dosimetric instruments as used in brachytherapy Part 1： Instruments based on well-type ionization chambers 1 3. . . 1 m , ( , 2 mm 5 mm) .

4、. , , (intravascular), , . . . , ( ) ( ) . a) , b) . . . KS C IEC 60601 1 . KS C IEC 60731 . 2 . . ( ) . KS C IEC 62467 1:2012 2 KS C IEC 60050 393： 2004, 393： KS C IEC 60580： 2007, KS C IEC 60601 1： 2011, 1： KS C IEC 60731： 2007, KS C IEC 61674： 2007, X IEC 60417： 2002, Graphical symbols for use on

5、 equipment( ) IEC/TR 60788： 2004, Medical electrical equipment Glossary of defined terms( ) IEC 61187： 1993, Electrical and electronic measuring equipment Documentation( ) ISO/IEC Guide 99： 2007, International vocabulary of metrology Basic and general concepts and associated terms (VIM) (VIM) 3 . IE

6、C/TR 60788 ISO/IEC Guide 99(IVM) . IEC/TR 60788 ISO/IEC GUIDE 99 . 3.1 (absorbed dose to water) D d by dm , d dm 1 Gy ( 1 Gy 1 J kg1). 2 ICRU 33 C.4( ) . KS C IEC 60731： 2007, 3.26 3.2 (air kerma strength) ( ) 1 5 keV . 2 Gy m2/s . 3 Gy m2/h . 3.3 (chamber assembly leakage current) 0 (ZERO DRIFT) 0

7、(ZERO SHIFT) . KS C IEC 62467 1:2012 3 3.4 (correction factor) 3.5 (effective range) (effective range of indicated values) 1 ( ) ( ) . 2 , , . 3.6 (equilibration time) 3.7 (error of measurement) 3.8 (indicated value) 3.9 (influence quantity) , , 3.10 (instrument parameter) 3.11 (measured value) 3.12

8、 (measuring assembly) ( ) 3.13 (overall uncertainty) KS C IEC 62467 1:2012 4 1 , . 2 5. 3.14 (reference air kerma rate) 1 m ( ) 1 5 keV . 2 Gy/s . 3 Gy/h . 4 . 3.15 (reference conditions) 3.16 (reference point of a well-type chamber) “ ” . 3.17 (reference value) KS C IEC 60731： 2007, 3.9, , ( ) ( )

9、. 3.18 (response) ( 1 m ) 3.19 (sealed well-type ionization chamber) 3.20 (stabilization time) 3.21 (standard test conditions) KS C IEC 62467 1:2012 5 3.22 (standard test value) , , 3.23 (stray radiation) , , . 3.24 (true value) 3.25 (usable length) “ ” . 3.26 (vented well-type ionization chamber) 3

10、.27 (well-type chamber system) . 3.28 (well-type ionization chamber) 4 , . 4 4.1 . . 5. 6. , . , 4.4, 5. 6. . KS C IEC 62467 1:2012 6 (KS C IEC 60731 ) , . 2 , . , , (latch-up) , . . 4.2 , KS C IEC 60731 . 4.3 4.3.1 . , . . 4.3.2 ( , ) . , . . 4.3.3 . . 4.4 . Gy m2/s , Gy/s , Gy/s Gy m2/h Gy/h . 4.5

11、 1 . KS C IEC 62467 1:2012 7 1 20 15 25 50 % 30 75 % 101.3 kPa 15 15 5 % 0 1 % 0 4.6 4.6.1 1 . a) b) . . 4.6.2 ( )(compliance) , . , . 4.6.3 ( ) . , . , . 4.6.4 , , . 4.7 4.7.1 ( ) . KS C IEC 62467 1:2012 8 4.7.2 , , , . 4.7.3 4.7.3.1 . , , , ( ), SI , m Gy m2/h, A 4.7.3.2 . 4.7.3.3 , . 4.7.4 . 1 mm

12、 . . , . . 4.7.5 15 . 4.8 . a) . b) . . , . ( , 0 ) KS C IEC 62467 1:2012 9 . , (quadrate) . , 0.5 % . 5 5.1 1 % . 10 , . , 192lr . 5.2 97 % . 5 mm ( ) . 5.3 0.5 % . . 5.4 , 0.5 % . 30 , 45 , 1 . 5.5 5.5.1 , 1 1.0 % . “ ” . 5.5.2 KS C IEC 62467 1:2012 10 75 % “ ” , 0.5 % . , , “ ” ( 1.0 % . 5.6.1 ).

13、 5.6 5.6.1 1.0 % ( ). ( ) 6 . ( 2 ). . 137Cs 60Co . 5.6.2 . 6 6.1 L 2 . 2 4 . 2 L 15 10 % 0.5 % 6.3 , , 80.0 106.0 kPa 15 35 80 %( 20 g/m3) 101.3 kPa 20 50 % 1 %a6.4 6.6 10.0 % 0.5 % 6.5 (KS C IEC 60731) KS C IEC 61000 4-X KS C IEC 60731 6.8 a KS C IEC 62467 1:2012 11 6.2 98 % . . 6.3 6.3.1 , 10 % 15 % 2 . AC. . . 6.3.2 , . 2 . . DC . . . . , . . 6.3.3 ( ) , , 2 . , . a) , b) , KS C IEC 62467 1:2012 12 c) , .