The default 3D 'input data' file.
A new simulation can be set up by selecting the default file default3.dat. This contain typical default parameters for the parameters, and so is suitable as a template for a new simulation.
Another file, cpo3d.dat, used to be called the ‘standard input data' file before the data-builder existed. It is still included in the CPO package.
If the raw data on the electrode geometry exit as a ‘dxf’ file then this can be converted to a 2D primary data file, using a conversion program that is supplied with the CPO package (and assuming that the geometry has axial symmetry). Another program supplied with the CPO package can then be used to convert from a 2D data file to a 3D file, for use with the CPO3D program.
See also default file for 2D.
The default file:
Default or template for CPO3D
tmp.dat name of output file, for processed data
tmpa.dat name of 2nd output file, for ray data
m n/p/m/a for nearlyzero/partial/most/all printing level
1 1 0 1 voltage reflection symmetries in x,y,z,x=y planes
2 number of different voltages, time dependence
0.01 5 allowed reading error, side/length ratio check
a apply inscribing correction (a/s/n=always/sometimes/never)
spherical electrode 1st electrode
0.5 0 0 -0.5 radius, centre of sphere
0 0 -0.5 centre of 1st bounding circle
0 0 -1 centre of 2nd bounding circle
1 1 numbers of 2 applied voltages (can be same)
50 number of subdivisions into triangles
spherical electrode 1st electrode
0.5 0 0 0.5 radius, centre of sphere
0 0 0.5 centre of 1st bounding circle
0 0 1 centre of 2nd bounding circle
2 2 numbers of 2 applied voltages (can be same)
50 number of subdivisions into triangles
end of electrode information
0 1 0.5 final number of segments, number of steps, weight
1e-06 fractional inaccuracy of charge evaluation
end of segment information
-1 left-hand sphere
1 right-hand sphere
n no more magnetic fields from menu
y y n potentials and fields along a line
0 0 -0.1 coordinates of initial end
0 0 0.1 coordinates of final end end
5 Number of points
0.0001 inaccuracy of evaluation
n n n no more potentials and fields along a line
start of ray information
d direct (d), or mesh (m) method and mesh spacing
m 'n/p/m/a' for 'nearlyzero/partial/most/all' printing level, rho/radius
-1.5 1.5 minimum and maximum x(mm) of screen 2D fields of view
-1.5 1.5 minimum and maximum y
-1.5 1.5 minimum and maximum z
-1.5 1.5 minimum and maximum x(mm) of rays
-1.5 1.5 minimum and maximum y
-1.5 1.5 minimum and maximum z
-1e+10 1e+10 minimum and maximum vx(m/s) of rays
-1e+10 1e+10 minimum and maximum vy
-1e+10 1e+10 minimum and maximum vz
0 1.5 minimum and maximum rho (=sqrt(x**2+y**2))
+ y direction of time, stop ray if electrode crossed (+/-, y/n)
1e-05 final time(ms)
0.1 0.1 3 initial and max step length or time(mm) and interpolation points
-0.001 fractional inaccuracy of ray tracing
1 number of test planes, multiple crossing, iterate to focus
0 0 1 0.25 a,b,c,d of test plane defined by a*x+b*y+c*z=d
el 'el' for electron; or 'co' or 'va' for other particles
k kinetic energy (k); or total energy (t) and potential
set of single rays:
0 0 0 0.5 0.5 1 1 0 x,y,z,vx,vy,vz,eV,I
last of this set of rays
n calculate space-charges?
0 0 0 0 symmetries of rays in yz,zx,xy an x=y planes
Default or template for CPO3D