PENELOPE 2003 - OECD Nuclear Energy Agency

3.3. Bremsstrahlung emission 115
Al, E= 5 0 k e V
1 2
Al, E= 5 0 0 k e V
2
κ=0 ( + 1 .5)
8
p (cos θ)
κ=0.6 ( + 1 .0)
p (cos θ)
κ=0 ( + 6 )
1
κ=0.8 ( + 0.5)
4
κ=0.6 ( + 4 )
κ=0.8 ( + 2 )
κ=0.95
κ=0.95
0
−1.0 −0.5 0.0 0.5 1.0
cos θ
0
0.0 0.5 1 .0
cos θ
Au, E= 5 0 k e V
Au, E= 5 0 0 k e V
2
κ=0 ( + 1 .5)
8
κ=0.6 ( + 1 .0)
p (cos θ)
1
κ=0.8 ( + 0.5)
p (cos θ)
4
κ=0 ( + 4 .5)
κ=0.6 ( + 3 .0)
κ=0.8 ( + 1 .5)
κ=0.95
κ=0.95
0
−1.0 −0.5 0.0 0.5 1.0
cos θ
0
0.0 0.5 1 .0
cos θ
Figure 3.16: Shape functions (angular distributions) for bremsstrahlung emission by electrons
of the indicated energies in the fields of aluminium and gold atoms. Dashed curves are partialwave
shape functions of Kissel et al. (1983). Continuous curves are the present analytical fits,
eq. (3.151). For visual aid, some curves have been shifted upwards in the amounts indicated
in parentheses.