Dose Course 2018_Flipping book

Dose properties for point kernels cont.:

Kernel anatomy - 5 MeV

Kernel anatomy - 15 MV

0.1

0.1

0.01

0.01

[cm -3 ]

[cm -3 ]

0.001

0.001

Total

Total

First scatter kerma

0.0001

0.0001

5

10

15

20

25

5

10

15

20

25

Radius [cm]

Radius [cm]

Fractional energy imparted per unit volume

Fractional energy imparted per unit volume

Suitable parameterization of polyenergetic point kernels

a r 

b r 

−

−

A

B

e

+

e

( ) , 





h r

=

2

r

16

Ahnesjö , A. Med. Phys. 16 577–92