Infinite homogeneous LWR-like reactor transient example

Generating the steady state source distributions

<nowiki>

set title "Creating source for a time dependent simulation"

% --- Geometry is just a cube

surf 2 cuboid -100.0 100.0 -100.0 100.0 -100.0 100.0

% --- Cell definitions:

cell 3 0 fuel -2 cell 99 0 outside 2  % Outside world

% --- Fuel material is a homogenized LWR material:

mat fuel sum vol 8.0000E+06 moder lwtr 1001

8016.03c  0.316667
1001.03c  0.633333
92235.03c 0.0015
92238.03c 0.0485
5010.03c  0.000115793

% --- Thermal scattering data for hydrogen in light water (294 K)

therm lwtr lwj3.00t

% --- Reflective boundary condition:

set bc 2 2 2

% --- Set power level

set power 1.0

% --- Neutron population:

% --- Large population size: (produced approx. 60M neutron and 40M precursor source points) set pop 80000 80000 200 1.0 100

% --- Save neutron and precursor source to "./source"-files

set savesrc "./source"

% --- Do not generate group constants

set gcu -1

% --- Do not use implicit capture, nxn, or fission

set impl 0 0 0 <nowiki>