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PWR_FA
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iset title "3D 17x17 standard PWR Assembly - HOM-parameters"
% --- Axial SEED pins definision
%============================================
% --- Fuel pins axial cut 1:
pin 101
Fuel_101 0.4095
Clad 0.4750
Water_101
pin 201
Water_101 0.5715
Clad 0.6120
Water_101
% --- Axial Lattice definitions
% --- Pin lattice axial cut 1:
lat 301 1 0.0 0.0 17 17 1.260
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 101 101 101 201 101 101 201 101 101 201 101 101 101 101 101
101 101 101 201 101 101 101 101 101 101 101 101 101 201 101 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 201 101 101 201 101 101 201 101 101 201 101 101 201 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 201 101 101 201 101 101 201 101 101 201 101 101 201 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 201 101 101 201 101 101 201 101 101 201 101 101 201 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 101 201 101 101 101 101 101 101 101 101 101 201 101 101 101
101 101 101 101 101 201 101 101 201 101 101 201 101 101 101 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101 101
% --- Assembly unit cell:
surf 41 sqc 0.0 0.0 10.71 0 % Defenition of Assembly
surf 42 sqc 0.0 0.0 10.75 0 % Defenition of Assembly + water
%--- Assembly Cell Definition
cell 401 0 fill 301 -41
cell 96 0 Water_assembly 41 -42
cell 97 0 outside 42 % Outside world
% ------------ Materials -------------------------------
% --- Fuel:
mat Fuel_101 sum burn 1 rgb 250 0 100
92235.09c 8.15077056e-004
92238.09c 2.21889771e-002
8016.09c 4.60081082e-002
mat Water_101 -0.700 moder lwtr 1001 rgb 0 100 150
1001.06c 2.0
8016.06c 1.0
mat Water_assembly 0.0707872 moder lwtr 1001
1001.06c 4.71915E-02
8016.06c 2.35957E-02
% --- Cladding:
mat Clad -6.55000 rgb 0 0 0
40090.06c 0.5145
40091.06c 0.1122
40092.06c 0.1715
40094.06c 0.1738
40096.06c 0.0280
% --- Thermal scattering data for light water:
therm lwtr lwj3.11t
% --- Cross section library file path:
set acelib "/usr/software/mcnplib/SERPENT/XSdata_endfb7/sss_endfb7u.xsdata"
set declib "/usr/software/mcnplib/SERPENT/XSdata_endfb7/sss_endfb7.dec"
set nfylib "/usr/software/mcnplib/SERPENT/XSdata_endfb7/sss_endfb7.nfy"
set inventory
541350
922340
922350
942390
set power 48074
set bc 2
% --- Group constant generation:
% symmetry = 12
set sym 0
% --- Neutron population and criticality cycles:
set pop 5000 200 50
% --- Geometry and mesh plots:
% mesh 3 500 500
% mesh 2 500 3000
% set outfile 1
set pcc 0
set opti 3
set printm 1
set egrid 5e-5 1e-9 15.0
%% Group Constant Homogenization, energy groups from Hitachi data
ene 1 1 1E-11 0.625E-6 15
% 8-group structure
set gcu 0
set nfg 8 1.4572E-07 6.2506E-07 3.9279E-06 1.3007E-04 9.1188E-03 8.2085E-01 2.2313E+00