&-----  1. Title  -------------------------------------------------------------
Example 4: V-Corregated Back Plane Reflector
&
&-----  2. Photon control information  ----------------------------------------
& num_photons  num_ploops  seed0  tol
  10000        100         1      0.01
&
&-----  3. Print control information  -----------------------------------------
& iprint idata
  0      0
&
&-----  4. Directions ---------------------------------------------------------
& n_long   n_tran
  5        10
& "n_long" logitudinal incidence angles
& n  thetal
   1     00.
   2     20.
   3     40.
   4     60.
   5     80.
& "n_tran" transverse incidence angles
& n  thetat
   1     00.
   2     05.
   3     10.
   4     20.
   5     30.
   6     40.
   7     50.
   8     60.
   9     70.
  10     80.
&
&-----  5.  Materials definitions  --------------------------------------------
& num_mats_opaq num_mats_glass
  2             1
& Next "num_mats_opaq" lines
& mat_num rho_s(n) rho_ss(n) rho_d(n) r_ss(n) r_d(n)
  1       0.0      0.0       0.1      0.0     0.0
  2       0.0      0.0       0.7      0.0     1.0
& Next "num_mats_glass" lines
& mat_num  n_glass(n) k_glass(n) t(n)
  1        1.5        0.13       0.2
&
&-----  6. Collector aperture definition  -------------------------------------
&
& n  x      y      z
 1  100.0 -40.0   0.0
 2 -100.0 -40.0   0.0
 3 -100.0  40.0   0.0
 4  100.0  40.0   0.0
&
&-----  7. Collector definition  ----------------------------------------------
&
&  *****  Module definitions  *****
& num_module_defs
  2
&  *****  Module definition number 1  *****
& num_elements
  2
& 1. Cylindrical glass cover
&   n  type  mat_num  int_level  absorber
    1  2     -1       1          0
&   x1   y1   z1   r    xmin   xmax
    0.0  0.0  0.0  6.3  -100.0 100.0
&
& 2. Cylindrical absorber tube
&   n  type  mat_num  int_level  absorber
    2  2     1        2          1
&   x1   y1   z1   r    xmin   xmax
    0.0  0.0  0.0  5.5  -100.0 100.0
&
& Number and position of type 1 modules
& num_modules
  4
& n  x0    y0     z0
  1  0.0  -30.0   0.0
  2  0.0  -10.0   0.0
  3  0.0   10.0   0.0
  4  0.0   30.0   0.0
&
&  *****  Module definition number 2  *****
& num_elements
  2
& 1. Flat plate refector surface
&   n  type  mat_num  int_level  absorber
    1  1     2        0          0
&    n   x       y      z
    1   100.0    0.0   0.0
    2   100.0  -10.0   5.7735
    3  -100.0  -10.0   5.7735
    4  -100.0    0.0   0.0
& 2. Flat plate reflector surface
&   n  type  mat_num  int_level  absorber
    2  1     2        0          0
&    n   x       y      z
    1   100.0    0.0   0.0
    2   100.0   10.0   5.7735
    3  -100.0   10.0   5.7735
    4  -100.0    0.0   0.0
&
& Number and position of type 2 modules
& num_modules
  4
& n  x0    y0     z0
  1  0.0  -30.0  -10.887
  2  0.0  -10.0  -10.887
  3  0.0   10.0  -10.887
  4  0.0   30.0  -10.887
&
&----- 8. External surface definitions  ---------------------------------------
& num_ext_surf
  0