Discretization and parameterization:
Most energy is transported in the forward direction, hence it make sense to
have smaller bins in the forward direction.
18
36 bins
201 bins
106 bins
(default in Oncentra, Monaco)
Discretization into
angular bins
causes 1/
r
2
dependence in
parameterization
to vanish
( )
(
)
2
2
,
e
e
,
sin d d d
e
e
m
m
m
m
m
a r
b r
m
a r
b r
m
A B
h r
r
r
r
A
B
θ
θ
Ω
Ω
θ
θ
θ φ Ω
Ω
Ω
θ
θ θ φ
Ω
−
−
∈
−
−
+
=
⋅
=
=
+
∫∫
m
r
b r
b r
θ
θ
Ω
Ω
θ
θ
φ
θ φ
∈
=
=
r
Ω