# ==============================================================================
#                                  Surfaces
# ==============================================================================
surface  101  px  -5
surface  102  px  -4
surface  103  px  -3
surface  104  px  -2
surface  105  px  -1
surface  106  px   0
surface  107  px   1
surface  108  px   2
surface  109  px   3
surface  110  px   4
surface  111  px   5

surface  201  py  -5
surface  202  py  -4
surface  203  py  -3
surface  204  py  -2
surface  205  py  -1
surface  206  py   0
surface  207  py   1
surface  208  py   2
surface  209  py   3
surface  210  py   4
surface  211  py   5

block

# ==============================================================================
#                                   Cells
# ==============================================================================

cell  1001  (101 -102 201 -202)  mat=2  imp=1  wwlb=0.5
cell  1002  (102 -103 201 -202)  mat=3  imp=1  wwlb=0.5
cell  1003  (103 -104 201 -202)  mat=3  imp=1  wwlb=0.5
cell  1004  (104 -105 201 -202)  mat=1  imp=1  wwlb=0.5
cell  1005  (105 -106 201 -202)  mat=1  imp=1  wwlb=0.5
cell  1006  (106 -107 201 -202)  mat=1  imp=1  wwlb=0.5
cell  1007  (107 -108 201 -202)  mat=1  imp=1  wwlb=0.5
cell  1008  (108 -109 201 -202)  mat=3  imp=1  wwlb=0.5
cell  1009  (109 -110 201 -202)  mat=3  imp=1  wwlb=0.5
cell  1010  (110 -111 201 -202)  mat=2  imp=1  wwlb=0.5

cell  2001  (101 -102 202 -203)  mat=2  imp=1  wwlb=0.5
cell  2002  (102 -103 202 -203)  mat=3  imp=1  wwlb=0.5
cell  2003  (103 -104 202 -203)  mat=3  imp=1  wwlb=0.5
cell  2004  (104 -105 202 -203)  mat=1  imp=1  wwlb=0.5
cell  2005  (105 -106 202 -203)  mat=1  imp=1  wwlb=0.5
cell  2006  (106 -107 202 -203)  mat=1  imp=1  wwlb=0.5
cell  2007  (107 -108 202 -203)  mat=1  imp=1  wwlb=0.5
cell  2008  (108 -109 202 -203)  mat=3  imp=1  wwlb=0.5
cell  2009  (109 -110 202 -203)  mat=3  imp=1  wwlb=0.5
cell  2010  (110 -111 202 -203)  mat=2  imp=1  wwlb=0.5

cell  3001  (101 -102 203 -204)  mat=0  imp=1  wwlb=0.5
cell  3002  (102 -103 203 -204)  mat=0  imp=1  wwlb=0.5
cell  3003  (103 -104 203 -204)  mat=0  imp=1  wwlb=0.5
cell  3004  (104 -105 203 -204)  mat=2  imp=1  wwlb=0.5
cell  3005  (105 -106 203 -204)  mat=2  imp=1  wwlb=0.5
cell  3006  (106 -107 203 -204)  mat=2  imp=1  wwlb=0.5
cell  3007  (107 -108 203 -204)  mat=2  imp=1  wwlb=0.5
cell  3008  (108 -109 203 -204)  mat=0  imp=1  wwlb=0.5
cell  3009  (109 -110 203 -204)  mat=0  imp=1  wwlb=0.5
cell  3010  (110 -111 203 -204)  mat=0  imp=1  wwlb=0.5

cell  4001  (101 -102 204 -205)  mat=0  imp=1  wwlb=0.5
cell  4002  (102 -103 204 -205)  mat=0  imp=1  wwlb=0.5
cell  4003  (103 -104 204 -205)  mat=0  imp=1  wwlb=0.5
cell  4004  (104 -105 204 -205)  mat=2  imp=1  wwlb=0.5
cell  4005  (105 -106 204 -205)  mat=2  imp=1  wwlb=0.5
cell  4006  (106 -107 204 -205)  mat=2  imp=1  wwlb=0.5
cell  4007  (107 -108 204 -205)  mat=2  imp=1  wwlb=0.5
cell  4008  (108 -109 204 -205)  mat=0  imp=1  wwlb=0.5
cell  4009  (109 -110 204 -205)  mat=0  imp=1  wwlb=0.5
cell  4010  (110 -111 204 -205)  mat=0  imp=1  wwlb=0.5

cell  5001  (101 -102 205 -206)  mat=0  imp=1  wwlb=0.5
cell  5002  (102 -103 205 -206)  mat=0  imp=1  wwlb=0.5
cell  5003  (103 -104 205 -206)  mat=0  imp=1  wwlb=0.5
cell  5004  (104 -105 205 -206)  mat=2  imp=1  wwlb=0.5
cell  5005  (105 -106 205 -206)  mat=2  imp=1  wwlb=0.5
cell  5006  (106 -107 205 -206)  mat=2  imp=1  wwlb=0.5
cell  5007  (107 -108 205 -206)  mat=2  imp=1  wwlb=0.5
cell  5008  (108 -109 205 -206)  mat=0  imp=1  wwlb=0.5
cell  5009  (109 -110 205 -206)  mat=0  imp=1  wwlb=0.5
cell  5010  (110 -111 205 -206)  mat=0  imp=1  wwlb=0.5

cell  6001  (101 -102 206 -207)  mat=0  imp=1  wwlb=0.5
cell  6002  (102 -103 206 -207)  mat=0  imp=1  wwlb=0.5
cell  6003  (103 -104 206 -207)  mat=0  imp=1  wwlb=0.5
cell  6004  (104 -105 206 -207)  mat=2  imp=1  wwlb=0.5
cell  6005  (105 -106 206 -207)  mat=2  imp=1  wwlb=0.5
cell  6006  (106 -107 206 -207)  mat=2  imp=1  wwlb=0.5
cell  6007  (107 -108 206 -207)  mat=2  imp=1  wwlb=0.5
cell  6008  (108 -109 206 -207)  mat=0  imp=1  wwlb=0.5
cell  6009  (109 -110 206 -207)  mat=0  imp=1  wwlb=0.5
cell  6010  (110 -111 206 -207)  mat=0  imp=1  wwlb=0.5

cell  7001  (101 -102 207 -208)  mat=0  imp=1  wwlb=0.5
cell  7002  (102 -103 207 -208)  mat=0  imp=1  wwlb=0.5
cell  7003  (103 -104 207 -208)  mat=0  imp=1  wwlb=0.5
cell  7004  (104 -105 207 -208)  mat=2  imp=1  wwlb=0.5
cell  7005  (105 -106 207 -208)  mat=2  imp=1  wwlb=0.5
cell  7006  (106 -107 207 -208)  mat=2  imp=1  wwlb=0.5
cell  7007  (107 -108 207 -208)  mat=2  imp=1  wwlb=0.5
cell  7008  (108 -109 207 -208)  mat=0  imp=1  wwlb=0.5
cell  7009  (109 -110 207 -208)  mat=0  imp=1  wwlb=0.5
cell  7010  (110 -111 207 -208)  mat=0  imp=1  wwlb=0.5

cell  8001  (101 -102 208 -209)  mat=0  imp=1  wwlb=0.5
cell  8002  (102 -103 208 -209)  mat=0  imp=1  wwlb=0.5
cell  8003  (103 -104 208 -209)  mat=0  imp=1  wwlb=0.5
cell  8004  (104 -105 208 -209)  mat=2  imp=1  wwlb=0.5
cell  8005  (105 -106 208 -209)  mat=2  imp=1  wwlb=0.5
cell  8006  (106 -107 208 -209)  mat=2  imp=1  wwlb=0.5
cell  8007  (107 -108 208 -209)  mat=2  imp=1  wwlb=0.5
cell  8008  (108 -109 208 -209)  mat=0  imp=1  wwlb=0.5
cell  8009  (109 -110 208 -209)  mat=0  imp=1  wwlb=0.5
cell  8010  (110 -111 208 -209)  mat=0  imp=1  wwlb=0.5

cell  9001  (101 -102 209 -210)  mat=0  imp=1  wwlb=0.5
cell  9002  (102 -103 209 -210)  mat=0  imp=1  wwlb=0.5
cell  9003  (103 -104 209 -210)  mat=0  imp=1  wwlb=0.5
cell  9004  (104 -105 209 -210)  mat=2  imp=1  wwlb=0.5
cell  9005  (105 -106 209 -210)  mat=2  imp=1  wwlb=0.5
cell  9006  (106 -107 209 -210)  mat=2  imp=1  wwlb=0.5
cell  9007  (107 -108 209 -210)  mat=2  imp=1  wwlb=0.5
cell  9008  (108 -109 209 -210)  mat=0  imp=1  wwlb=0.5
cell  9009  (109 -110 209 -210)  mat=0  imp=1  wwlb=0.5
cell  9010  (110 -111 209 -210)  mat=0  imp=1  wwlb=0.5

cell 10001  (101 -102 210 -211)  mat=0  imp=1  wwlb=0.5
cell 10002  (102 -103 210 -211)  mat=0  imp=1  wwlb=0.5
cell 10003  (103 -104 210 -211)  mat=0  imp=1  wwlb=0.5
cell 10004  (104 -105 210 -211)  mat=2  imp=1  wwlb=0.5
cell 10005  (105 -106 210 -211)  mat=2  imp=1  wwlb=0.5
cell 10006  (106 -107 210 -211)  mat=2  imp=1  wwlb=0.5
cell 10007  (107 -108 210 -211)  mat=2  imp=1  wwlb=0.5
cell 10008  (108 -109 210 -211)  mat=0  imp=1  wwlb=0.5
cell 10009  (109 -110 210 -211)  mat=0  imp=1  wwlb=0.5
cell 10010  (110 -111 210 -211)  mat=0  imp=1  wwlb=0.5

cell 99999  (-101:111:-201:211)  mat=0  imp=0  wwlb=0.5
block

# ==============================================================================
#                                   Data
# ==============================================================================
erg 100  0

mat 1   cxs     0.20   &
        sxs  1  0.80

mat 2   cxs     0.10   &
        sxs  1  0.40

mat 3   cxs     0.02   &
        sxs  1  0.08 

quad  tgc  8
tol  5e-3
wmesh hord=1 nord=9 nbin=501 type=pwl

var  ww

tal 1  surf=211  type=cur  seg=104 -108

src  x = -1  1        &
     y = -5 -4        &
     efrac=  1  1.0   &
     wgt = 1.0

optimize  cnorm=1005  enorm=1    &
          xmesh=-5  -3  -1  1  3  5  &
          ymesh=-5  -3  -1  1  3  5  &
          step=0.2

times   acetot  8.45004E-08 &
        bankit  2.24612E-07 &
        colidn  1.52900E-07 &
        startp  1.34064E-06 &
        surfac  4.39085E-07 &
        tally   4.31506E-07 &
        track   1.05709E-07 &
        wtwndo  6.12454E-08

# non-optimized
# wwlb  1    6.66746E-02    5.65491E-02    2.13924E-01    4.57500E-01    5.00000E-01 &
#            5.00000E-01    4.57500E-01    2.13924E-01    5.65491E-02    6.66746E-02 &
#            4.57662E-02    3.99504E-02    1.35014E-01    2.43651E-01    2.18966E-01 &
#            2.18966E-01    2.43651E-01    1.35014E-01    3.99504E-02    4.57662E-02 &
#            3.76499E-02    3.29981E-02    9.00542E-02    1.44622E-01    1.19377E-01 &
#            1.19377E-01    1.44622E-01    9.00542E-02    3.29981E-02    3.76499E-02 &
#            3.29744E-02    2.89943E-02    6.01961E-02    9.69091E-02    7.44111E-02 &
#            7.44111E-02    9.69091E-02    6.01961E-02    2.89943E-02    3.29744E-02 &
#            2.99406E-02    2.50433E-02    3.97504E-02    6.03776E-02    4.43197E-02 &
#            4.43197E-02    6.03776E-02    3.97504E-02    2.50433E-02    2.99406E-02 &
#            2.46497E-02    2.15021E-02    2.57803E-02    3.52085E-02    2.58653E-02 &
#            2.58653E-02    3.52085E-02    2.57803E-02    2.15021E-02    2.46497E-02 &
#            1.93082E-02    1.79142E-02    1.75912E-02    2.00423E-02    1.46635E-02 &
#            1.46635E-02    2.00423E-02    1.75912E-02    1.79142E-02    1.93082E-02 &
#            1.87631E-02    1.43322E-02    1.22193E-02    1.11367E-02    8.18842E-03 &
#            8.18842E-03    1.11367E-02    1.22193E-02    1.43322E-02    1.87631E-02 &
#            2.11932E-02    1.35525E-02    8.75505E-03    6.03962E-03    4.39839E-03 &
#            4.39839E-03    6.03962E-03    8.75505E-03    1.35525E-02    2.11932E-02 &
#            3.33077E-02    1.98269E-02    8.10445E-03    2.72558E-03    2.21960E-03 &
#            2.21960E-03    2.72558E-03    8.10445E-03    1.98269E-02    3.33077E-02 &
#            5.00000E-01

# optimized
# wwlb  1    6.29327E-03    1.27140E-02    8.34335E-02    1.69729E-01    1.50490E-01 &
#            1.50490E-01    1.69729E-01    8.34335E-02    1.27140E-02    6.29327E-03 &
#            2.47197E-03    4.94576E-03    5.10347E-02    1.09707E-01    8.09165E-02 &
#            8.09165E-02    1.09707E-01    5.10347E-02    4.94576E-03    2.47197E-03 &
#            5.27491E-03    8.58033E-03    5.75079E-02    1.02668E-01    1.18833E-01 &
#            1.18833E-01    1.02668E-01    5.75079E-02    8.58033E-03    5.27491E-03 &
#            5.13340E-03    6.38310E-03    3.91152E-02    6.84660E-02    6.28638E-02 &
#            6.28638E-02    6.84660E-02    3.91152E-02    6.38310E-03    5.13340E-03 &
#            1.07491E-02    8.64982E-03    8.33108E-03    1.31990E-02    2.65694E-02 &
#            2.65694E-02    1.31990E-02    8.33108E-03    8.64982E-03    1.07491E-02 &
#            1.15672E-02    7.10626E-03    4.28911E-03    6.92054E-03    1.21653E-02 &
#            1.21653E-02    6.92054E-03    4.28911E-03    7.10626E-03    1.15672E-02 &
#            7.80792E-03    7.12487E-03    4.43918E-03    5.61778E-03    5.17783E-03 &
#            5.17783E-03    5.61778E-03    4.43918E-03    7.12487E-03    7.80792E-03 &
#            6.63953E-03    5.60504E-03    2.53618E-03    2.57565E-03    2.24594E-03 &
#            2.24594E-03    2.57565E-03    2.53618E-03    5.60504E-03    6.63953E-03 &
#            6.95845E-03    4.73045E-03    1.88793E-03    1.32582E-03    1.07480E-03 &
#            1.07480E-03    1.32582E-03    1.88793E-03    4.73045E-03    6.95845E-03 &
#            1.42101E-02    6.75602E-03    1.48132E-03    4.60302E-04    4.35599E-04 &
#            4.35599E-04    4.60302E-04    1.48132E-03    6.75602E-03    1.42101E-02 &
#            5.00000E-01
