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12.3 The Union_master McStas Component
Master component for Union components that performs the overall simulation
Identification
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Author: Mads Bertelsen
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Origin: University of Copenhagen
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Date: 20.08.15
Description
Part of the Union components, a set of components that work together and thus sperates geometry and physics within McStas. The use of this component requires other components to be used.
1) One specifies a number of processes using process components 2) These are gathered into material definitions using Union_make_material 3) Geometries are placed using Union_box/cylinder/sphere, assigned a material 4) This master component placed after all of the above
Only in step 4 will any simulation happen, and per default all geometries defined before this master, but after the previous will be simulated here.
There is a dedicated manual available for the Union_components
Algorithm: Described elsewhere
Input parameters
Parameters in boldface are required; the others are optional.
|
Name |
Unit |
Description |
Default |
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enable_refraction |
0/1 |
Toggles refraction effects, simulated for all materials that have refraction parameters set |
1 |
|
enable_reflection |
0/1 |
Toggles reflection effects, simulated for all materials that have refraction parameters set |
1 |
|
verbal |
0/1 |
Toogles printing information loaded during initialize |
0 |
|
list_verbal |
0/1 |
Toogles information of all internal lists in intersection network |
0 |
|
finally_verbal |
0/1 |
Toogles information about cleanup performed in finally section |
0 |
|
allow_inside_start |
0/1 |
Set to 1 if rays are expected to start inside a volume in this master |
0 |
|
enable_tagging |
0/1 |
Enable tagging of ray history (geometry, scattering process) |
0 |
|
history_limit |
1 |
Limit the number of unique histories that are saved |
300000 |
|
enable_conditionals |
0/1 |
Use conditionals with this master |
1 |
|
inherit_number_of_scattering_events |
0/1 |
Inherit the number of scattering events from last master |
0 |
|
weight_ratio_limit |
1 |
Limit on the ratio between initial weight and current, ray absorbed if ratio becomes lower than limit |
1e-90 |
|
init |
string |
Deprecated and unused. Accepted so that instruments written for McStas/McXtrace 3.8.7 and earlier, which name the Union_init component here, still compile. |
"" |
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Links
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Component source code found in file Union_master.comp.
