set title "PWR Burnup Calculation Based on NEA Benchmark"
% --- Fuel pins:
pin 10
UO2 0.4025
clad 0.4750
water
pin 11
UO2 0.4025
clad 0.4750
water
pin 12
UO2 0.4025
clad 0.4750
water
pin 13
UO2 0.4025
clad 0.4750
water
pin 14
UO2 0.4025
clad 0.4750
water
pin 15
UO2 0.4025
clad 0.4750
water
pin 16
UO2 0.4025
clad 0.4750
water
pin 17
UO2 0.4025
clad 0.4750
water
pin 18
UO2 0.4025
clad 0.4750
water
pin 19
UO2 0.4025
clad 0.4750
water
pin 20
UO2 0.4025
clad 0.4750
water
pin 21
UO2 0.4025
clad 0.4750
water
pin 22
UO2 0.4025
clad 0.4750
water
pin 23
UO2 0.4025
clad 0.4750
water
pin 24
UO2 0.4025
clad 0.4750
water
pin 25
UO2 0.4025
clad 0.4750
water
pin 26
UO2 0.4025
clad 0.4750
water
pin 27
UO2 0.4025
clad 0.4750
water
pin 28
UO2 0.4025
clad 0.4750
water
pin 29
UO2 0.4025
clad 0.4750
water
pin 30
UO2 0.4025
clad 0.4750
water
pin 31
UO2 0.4025
clad 0.4750
water
pin 32
UO2 0.4025
clad 0.4750
water
pin 33
UO2 0.4025
clad 0.4750
water
pin 34
UO2 0.4025
clad 0.4750
water
pin 35
UO2 0.4025
clad 0.4750
water
pin 36
UO2 0.4025
clad 0.4750
water
pin 37
UO2 0.4025
clad 0.4750
water
pin 38
UO2 0.4025
clad 0.4750
water
pin 39
UO2 0.4025
clad 0.4750
water
pin 40
UO2 0.4025
clad 0.4750
water
pin 41
UO2 0.4025
clad 0.4750
water
pin 42
UO2 0.4025
clad 0.4750
water
pin 43
UO2 0.4025
clad 0.4750
water
pin 44
UO2 0.4025
clad 0.4750
water
pin 45
UO2 0.4025
clad 0.4750
water
% --- Gd-pins:
pin 50
UO2Gd 0.4025
clad 0.4750
water
pin 51
UO2Gd 0.4025
clad 0.4750
water
pin 52
UO2Gd 0.4025
clad 0.4750
water
% --- Guide tube:
pin 90
water 0.5730
tube 0.6130
water
% --- Pin lattice:
lat 110 1 0.0 0.0 17 17 1.265
45 44 43 42 41 40 39 38 37 38 39 40 41 42 43 44 45
44 36 35 34 33 32 31 30 29 30 31 32 33 34 35 36 44
43 35 28 27 52 90 26 25 90 25 26 90 52 27 28 35 43
42 34 27 90 24 23 22 21 51 21 22 23 24 90 27 34 42
41 33 52 24 20 19 18 17 16 17 18 19 20 24 52 33 41
40 32 90 23 19 90 15 14 90 14 15 90 19 23 90 32 40
39 31 26 22 18 15 50 13 12 13 50 15 18 22 26 31 39
38 30 25 21 17 14 13 11 10 11 13 14 17 21 25 30 38
37 29 90 51 16 90 12 10 90 10 12 90 16 51 90 29 37
38 30 25 21 17 14 13 11 10 11 13 14 17 21 25 30 38
39 31 26 22 18 15 50 13 12 13 50 15 18 22 26 31 39
40 32 90 23 19 90 15 14 90 14 15 90 19 23 90 32 40
41 33 52 24 20 19 18 17 16 17 18 19 20 24 52 33 41
42 34 27 90 24 23 22 21 51 21 22 23 24 90 27 34 42
43 35 28 27 52 90 26 25 90 25 26 90 52 27 28 35 43
44 36 35 34 33 32 31 30 29 30 31 32 33 34 35 36 44
45 44 43 42 41 40 39 38 37 38 39 40 41 42 43 44 45
% --- assembly data:
surf 1000 sqc 0.0 0.0 10.752
surf 1001 sqc 0.0 0.0 10.806
cell 110 0 fill 110 -1000
cell 111 0 water 1000 -1001
cell 112 0 outside 1001
% --- Materials:
mat UO2 6.7402E-02 burn 1
92234.09c 9.1361E-06
92235.09c 9.3472E-04
92238.09c 2.1523E-02
8016.09c 4.4935E-02
mat UO2Gd 6.8366E-02 burn 10
92234.09c 4.2940E-06
92235.09c 5.6226E-04
92238.09c 2.0549E-02
64154.09c 4.6173E-05
64155.09c 2.9711E-04
64156.09c 4.1355E-04
64157.09c 3.1518E-04
64158.09c 4.9786E-04
64160.09c 4.3764E-04
8016.09c 4.5243E-02
mat clad 3.8510E-02
26000.06c 1.3225E-04
24000.06c 6.7643E-05
40000.06c 3.8310E-02
mat tube 4.3206E-02
26000.06c 1.4838E-04
24000.06c 7.5891E-05
40000.06c 4.2982E-02
mat water 7.2216E-02 moder lwtr 1001
1001.06c 4.8132E-02
8016.06c 2.4066E-02
5010.06c 3.6487E-06
5011.06c 1.4686E-05
therm lwtr lwj3.11t
% --- Cross section library file path:
set acelib "/xs/sss_endfb7u.xsdata"
% --- Periodic boundary condition:
set bc 3
% --- Neutron population and criticality cycles:
set pop 6000 500 20
% --- Geometry and mesh plots:
plot 3 500 500
mesh 3 500 500
% --- Decay and fission yield libraries:
set declib "/xs/sss_endfb7.dec"
set nfylib "/xs/sss_endfb7.nfy"
% --- Irradiation cycle:
set powdens 38.6E-3
dep butot
0.10000
0.50000
1.00000
1.50000
2.00000
2.50000
3.00000
3.50000
4.00000
4.50000
5.00000
5.50000
6.00000
6.50000
7.00000
7.50000
8.00000
8.50000
9.00000
9.50000
10.00000
10.50000
11.00000
11.50000
12.00000
12.50000
13.00000
13.50000
14.00000
14.50000
15.00000
17.50000
20.00000
22.50000
25.00000
27.50000
30.00000
32.50000
35.00000
37.50000
40.00000
% --- Nuclide inventory:
set inventory
922340
922350
922360
922370
922380
922390
932360
932370
932380
932390
942360
942380
942390
942400
942410
942420
942430
952410
952420
952430
952440
952421
962420
962430
962440
962450
962460
962470
962480
962490
972490
972500
982490
982500
982510
982520
360830
451030
451050
471090
531350
541310
541350
551330
551340
551350
551370
561400
571400
601430
601450
611470
611480
611490
611481
621470
621490
621500
621510
621520
631530
631540
631550
631560
641520
641540
641550
641560
641570
641600
