Queries, comments, suggestions? Please contact us.



Area Radiology and radiological physics / Dosimetry : general terms, special quantities and units

IEV ref881-12-50

Symbol
Scol/ρ

en
collision mass stopping power
the quotient of dEcol by the product of ρ and dl, where dEcol is the energy lost by a charged particle of specified energy by collisions in traversing the path length dl in a material of density ρ :

S col ρ = 1 ρ ( dE dl ) col MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaamaalaaabaGaam4uamaaBaaaleaacaqGJbGaae4BaiaabYgaaeqaaaGcbaGaeqyWdihaaiabg2da9maalaaabaGaaGymaaqaaiabeg8aYbaacqGHflY1daqadaqaamaalaaabaGaaeizaiaadweaaeaacaqGKbGaamiBaaaaaiaawIcacaGLPaaadaWgaaWcbaGaae4yaiaab+gacaqGSbaabeaaaaa@48E3@

Note – The energy losses included are those that produce excitation and ionization of atoms as well as those producing recoil atoms.


fr
pouvoir d'arrêt massique par collisions, m
quotient, par le produit ρ dl, de la perte d'énergie par collision d'une particule chargée d'énergie spécifiée dEcol traversant une longueur dl de matière de masse volumique ρ:

S col ρ = 1 ρ ( dE dl ) col MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaamaalaaabaGaam4uamaaBaaaleaacaqGJbGaae4BaiaabYgaaeqaaaGcbaGaeqyWdihaaiabg2da9maalaaabaGaaGymaaqaaiabeg8aYbaacqGHflY1daqadaqaamaalaaabaGaaeizaiaadweaaeaacaqGKbGaamiBaaaaaiaawIcacaGLPaaadaWgaaWcbaGaae4yaiaab+gacaqGSbaabeaaaaa@48E3@

Note – Les pertes d'énergie comprises dans le pouvoir d'arrêt massique par collisions sont aussi bien celles qui produisent l'excitation et l'ionisation des atomes que celles qui produisent les atomes de recul.


ar
قدرة إيقاف كتلة التصادم

es
poder de frenado másico por colisión

it
potere frenante massico per collisione

ko
충돌질량 저지능

ja
質量衝突阻止能

pl
zdolność hamowania zderzeniowa masowa

pt
poder de paragem mássico por colisão

sv
massbromsförmåga genom kollisionsförluster

Publication date: 1983-01
Copyright © IEC 2020. All Rights Reserved.