International
Electrotechnical
Commission
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Area
Radiology and radiological physics
/ Ionizing radiations : quantities and units
IEV ref
881-04-29
Symbol
σ
c
ρ
+
σ
coh
ρ
MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaamaabmaabaWaaSaaaeaacqaHdpWCdaWgaaWcbaGaae4yaaqabaaakeaacqaHbpGCaaGaey4kaSYaaSaaaeaacqaHdpWCdaWgaaWcbaGaci4yaiaac+gacaGGObaabeaaaOqaaiabeg8aYbaaaiaawIcacaGLPaaaaaa@42F9@
en
mass attenuation coefficient
(scattering)
those parts of the mass attenuation coefficient attributable to Compton scattering
(
σ
c
ρ
)
MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaamaabmaabaWaaSaaaeaacqaHdpWCdaWgaaWcbaGaci4yaaqabaaakeaacqaHbpGCaaaacaGLOaGaayzkaaaaaa@3B89@
and to coherent scattering
(
σ
coh
ρ
)
MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaamaabmaabaWaaSaaaeaacqaHdpWCdaWgaaWcbaGaae4yaiaab+gacaqGObaabeaaaOqaaiabeg8aYbaaaiaawIcacaGLPaaaaaa@3D63@
fr
coefficient d'atténuation massique de diffusion
, m
somme des parties du coefficient d'atténuation total massique qui sont attribuables à la diffusion Compton
(
σ
c
ρ
)
MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaamaabmaabaWaaSaaaeaacqaHdpWCdaWgaaWcbaGaci4yaaqabaaakeaacqaHbpGCaaaacaGLOaGaayzkaaaaaa@3B89@
et à la diffusion cohérente
(
σ
coh
ρ
)
MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaamaabmaabaWaaSaaaeaacqaHdpWCdaWgaaWcbaGaae4yaiaab+gacaqGObaabeaaaOqaaiabeg8aYbaaaiaawIcacaGLPaaaaaa@3D63@
ar
معامل توهين الكتلة (مشتت)
معامل إضمحلال الكتلة (مشتت)
es
coeficiente másico de atenuación de difusión
it
coefficiente di attenuazione massico
ko
질량 감쇠 계수, 산란
ja
質量減衰係数, <散乱>
pl
masowy współczynnik osłabienia rozproszeniowego
pt
coeficiente mássico de atenuação de difusão
sv
spridningsmassdämpningskoefficient
zh
质量衰减系数, <散射><相关条目:IEV:881-04-27;881-04-28;881-04-30>
Publication date:
1983-01
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