5.3.3. Cylindrical source

The parameters required for the cylindrical source type are given below. The order of the parameters is arbitrary. Parameters with (D=***) are optional.

Table 5.3.18 x0

value	explanation
(D=0.0)	x coordinate of the central axis of the cylinder source [cm].

Table 5.3.19 y0

value	explanation
(D=0.0)	y coordinate of the central axis of the cylinder source [cm].

Table 5.3.20 z0

value	explanation
(D=0.0)	Minimum z of the cylinder source [cm].

Table 5.3.21 z1

value	explanation
(D=0.0)	Maximum z of the cylinder source [cm]. When z1 = z0, this becomes a circular plane source.

Table 5.3.22 r0

value	explanation
(D=0.0)	Radius of the cylinder source [cm]. When r0 = 0.0, a pencil source results.

Table 5.3.23 r1

value	explanation
(D=0.0)	Inner radius of the cylinder [cm].

Table 5.3.24 dir

value	explanation
(D=1.0)	Direction cosine of the projectile relative to the z-axis.
all	Isotropic source.
data	An a-type subsection is required.

Table 5.3.25 phi

value	explanation
(D=all)	Azimuthal angle [degree].
all	Randomly selected in the range from 0 to 360 degrees.

Table 5.3.26 dom

value	explanation
(D=0.0)	Solid angle spread [degree].
-1	\(\cos^2\) bias distribution.

Table 5.3.27 e0

value	explanation
	For mono-energy source, specify the projectile energy [MeV/n]. For an energy spectrum, use e-type = instead.

Table 5.3.28 e-type

value	explanation
mono-energy source	Give the source energy [MeV/n] directly by e0.
energy spectrum	Specify the source energy distribution by e-type.