Advanced Physics for Brachytherapy 2018

General formalism

•

M

tg lk )(

) ( 

 

QwADN QwADN * )0( , ) ( ,

Qw

) ( ,

bkgd k Q

wD

QwADN )0( ,

phant p

=



=

S

K

KS

tg lk )(

) ( 

 

bkgd k QM

rel

bq k QwADN *  

phant p rel f



)0( ,

KS



)( tg =

Where:

t

t − −

)] − −  exp t

exp[



(

exp( 1)][

start

cal

) ( QD

ww

,

p

phant =

and

can be calculated using MC

) ( Q D

, phant w

I need to measure:

M, N

(Q

0 ), corrections k l

, and k

,

AD,w

bq

calculate: and know:

g(t), f, p

,

phant

S , with as low an uncertainty as possible! K