Fiche 9- Dosimétrie Flashcards

1
Q

Énergie radiante

A

R=N.E

En J

N:nbr particules
E: E particule-> en J

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2
Q

Flux énergétique

A

R•=N•.E

En J.s-1
N• en s-1

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3
Q

Fluence énergétique

A

Ψ=dR/dS
En J.m-2

Ψ(x)=Ψ0.e(-μx)
μ: proba d’absorption m-1

Débit de fluence énergétique: W.m-2=J.s-1.m-2

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4
Q

Débit de fluence énergétique pour une source ponctuelle

A

Ψ•=1/r². dR•/dΩ

=1/R². dR•.R²/dS

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5
Q

Kerma

A

K=[ΣΔWin(photons entrants)-ΣΔWout(photons sortants)]/dm

=dEm/dm

En Gy

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