%ESRC Card

This card shall be present only if the calculation mode is %FIXEDSRC

%ESRC	Variable	Description	Remarks
LINE 1	NSRC	Number of sources
LINE 2	SDEN	Source density	Repeat LINE 2 through LINE 7 NSRC times
LINE 3	SPEC(1:NG)	Source energy spectrum (normalized to 1.0)
LINE 4	ZPOS	Axial position of the source (between 1 to NZ)	This line must be followed by XPOS and YPOS. And then this input segment can be repeated as many as desired until 0 (LINE 7) is entered
LINE 5	XPOS	Radial position of the source (along X axis) for current axial position	Repeat this line as many as desired until 0 (LINE 6) is entered
	YPOS	Radial position of the source (along Y axis) for current axial position
LINE 6	0	Zero numbers are entered to end XPOS and YPOS
	0
LINE 7	0	Zero number to end ZPOS

Example:

! External source card
%ESRC
2         ! Number of source                  (LINE 1)
! Repeat this input segment
! according to the number of sources
100000.       ! Source Density (n/cm3.s)      (LINE 2)
1.0  0.0  ! Source energy spectrum            (LINE 3)
10        ! z-position of the source          (LINE 4)
2  9      ! x-y position of the source        (LINE 5)
2  8
1  8
0  0      ! x-y position ends                (LINE 6)
0         !  z-position ends                 (LINE 7)
200000.       ! Source Density (n/cm3.s)     (LINE 2)
1.0  0.0  ! Source energy spectrum           (LINE 3)
10        ! z-position of the source         (LINE 4)
1  9      ! x-y position of the source       (LINE 5)
0  0      ! x-y position ends                (LINE 6)
0         !  z-position ends                 (LINE 7)