PowerPoint Presentation

Previous Page

Next Page

Page Background

The method …

•

If I know the spectrum of the source I know the

amount of energy per unit mass scattered in first

interactions of primary photons, S

1sc

)ir

exp(

2

ir 4π

R

=Ψ R



−

→

i

i

i

Ψ)

ρ

μ

(=T

i

i

i

i prim

Τ)

μ

enμ

( Ψ)

ρ

enμ

(=K D : CPE

under

=



i

primD

i

i

i

i

i

)1

en

μ

μ

( Τ)

μ

enμ

-

(1 Ψ)

ρ

enμ-μ

( K

-Τ=S

− =

=

=

r

i

•

Let us start again from the simplest case (point

isotopic monoenergetic photon source in infinite

medium of given composition)

•

at any point I know more than D

prim

: