Design error in reactor nuclear simulation in serpent code

  • #1
emilmammadzada
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TL;DR Summary
Design error in reactor nuclear simulation in serpent code
Dear experts, I would like to get help from you on something. I want to design a vver -1200 core in the serpent nuclear code, but I am getting errors in the geometry I defined below. I would like to get help from you on how to fix these errors.I seem to be getting errors in cell definitions and it is related to the lost particle. I would be very happy if you could help me with this.
Code:
[
% --- Fuel pin with central hole:

pin 1
helium   0.08000
fuel   0.38000
helium   0.38650
clad   0.45500
water   

% --- Fuel pin2 with central hole:

pin 5
helium   0.08000
fuel1   0.38000
helium   0.38650
clad   0.45500
water   

% --- Central tube:

pin 2 
water  0.05450
clad   0.06000
water 

% --- Guide tube:

pin 4 
water  0.38000
clad   0.45500
water   

% --- Empty lattice position:

pin 3
water 

% --- Empty lattice position:

pin 7
water   

% --- Assembly Lattice (type = 2, pin pitch = 1.2750 cm):

lat 10  3  0.0 0.0 23 23 1.2750
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
 3 3 3 3 3 3 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 3
  3 3 3 3 3 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 3  
   3 3 3 3 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 3 
    3 3 3 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 
     3 3 3 3 3 3 3 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 3
      3 3 3 3 3 3 1 1 1 1 1 4 5 5 5 5 4 1 1 1 1 1 3
       3 3 3 3 3 1 1 1 1 1 5 5 5 5 5 5 5 1 1 1 1 1 3
        3 3 3 3 1 1 1 1 4 5 5 5 4 5 5 5 5 4 1 1 1 1 3
         3 3 3 1 1 1 1 1 5 5 5 5 5 5 4 5 5 1 1 1 1 1 3 
          3 3 1 1 1 1 1 5 5 4 5 5 5 5 5 5 5 1 1 1 1 1 3
           3 1 1 1 1 1 4 5 5 5 5 2 5 5 5 5 4 1 1 1 1 1 3
            3 1 1 1 1 1 5 5 5 5 5 5 5 4 5 5 1 1 1 1 1 3 3
             3 1 1 1 1 1 5 5 4 5 5 5 5 5 5 1 1 1 1 1 3 3 3 
              3 1 1 1 1 4 5 5 5 5 4 5 5 5 4 1 1 1 1 3 3 3 3
               3 1 1 1 1 1 5 5 5 5 5 5 5 1 1 1 1 1 3 3 3 3 3
                3 1 1 1 1 1 4 5 5 5 5 4 1 1 1 1 1 3 3 3 3 3 3
                 3 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 3 3 3 3 3 3 3
                  3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3
                   3 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3 3
                    3 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3 3 3 
                     3 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3 3 3 3
                      3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 

% --- Surfaces (assembly pitch = 22.7 cm):

surf 1  hexyprism    0.0  0.0  11.555 0.0 10 % Shroud tube inner radius
surf 2  hexyprism    0.0  0.0  11.650 0.0 10 % Shroud tube outer radius
surf 3  hexyprism    0.0  0.0  11.750 0.0 10  % Outer boundary

% --- Cells:

cell  1  6  fill 10  -1        % Pin lattice                 
cell  4  6  tube      1    -2  % Shroud tube                
cell  5  6  water     2    -3  % Water in channel                
cell 99  0  outside         3  % Outside world                

% --- Core Lattice (type = 2, pin pitch = 22.7 cm):

lat 100  2  0.0 0.0 17 17 22.7
7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
 7 7 7 7 7 7 7 7 6 6 6 6 6 6 6 6 7
  7 7 7 7 7 7 7 6 6 6 6 6 6 6 6 6 7
   7 7 7 7 7 7 6 6 6 6 6 6 6 6 6 6 7
    7 7 7 7 7 6 6 6 6 6 6 6 6 6 6 6 7
     7 7 7 7 6 6 6 6 6 6 6 6 6 6 6 6 7
      7 7 7 6 6 6 6 6 6 6 6 6 6 6 6 6 7
       7 7 6 6 6 6 6 6 6 6 6 6 6 6 6 6 7
        7 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 7
         7 6 6 6 6 6 6 6 6 6 6 6 6 6 6 7 7
          7 6 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7
           7 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7
            7 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7
             7 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7
              7 6 6 6 6 6 6 6 6 6 3 7 7 7 7 7 7
               7 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7
                7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
 

% --- Surfaces (assembly pitch = 340cm):
%-----Outer VVER
% --- Surfaces (core pitch = 340 cm):

%surf 10  hexyc    0.0  0.0  170.05  % Shroud tube inner radius
%surf 20  hexyc    0.0  0.0  170.15  % Shroud tube outer radius
%surf 30  hexyc    0.0  0.0  170.25  % Outer boundary
surf 50  cyl 0.0 0.0 173.16890 0.0 10 % Pressure tube inner wall
surf 60  cyl 0.0 0.0 173.60320 0.0 10 % Pressure tube outer wall
surf 90  sqc 0.0 0.0 190.09570   % Outer boundary
% --- Cells:

cell 300  300  fill 100 -50      % Pin lattice
cell 400  0  tube      50  -60 % Pressure tube
cell 500  0  water     60  -90  % Void between tubes
cell 600  0  outside   90     % Outside world]
 
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