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10.9 The Res_monitor McStas Component
Monitor for resolution calculations
Identification
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Author: Kristian Nielsen
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Origin: Risoe
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Date: 1999
Description
A single detector/monitor, used together with the Res_sample component to compute instrument resolution functions. Outputs a list of neutron scattering events in the sample along with their intensities in the detector. The output file may be analyzed with the mcresplot front-end.
Example: Res_monitor(filename="Output.res", res_sample_comp="RSample", xmin=-0.1, xmax=0.1, ymin=-0.1, ymax=0.1)
Setting the monitor geometry. The optional parameter ’options’ may be set as a string with the following keywords. Default is rectangular (’square’):
box Box of size xwidth, yheight, zdepth cylinder To get a cylindrical monitor (diameter is xwidth, height is yheight). banana Same as cylinder, without top/bottom, on restricted angular area disk Disk flat xy monitor. diameter is xwidth. sphrere To get a spherical monitor (e.g. a 4PI) (diameter is xwidth). square Square flat xy monitor (xwidth, yheight)
Input parameters
Parameters in boldface are required; the others are optional.
|
Name |
Unit |
Description |
Default |
|
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res_sample_comp |
WITH quotes |
Name of Res_sample component in the instrument definition |
|
|
filename |
string |
Name of output file. If unset, use automatic name |
0 |
|
options |
str |
String that specifies the geometry of the monitor |
0 |
|
xwidth |
m |
Width/diameter of detector |
.1 |
|
yheight |
m |
Height of detector |
.1 |
|
zdepth |
m |
Thichness of detector |
0 |
|
radius |
m |
Radius of sphere/cylinder monitor |
0 |
|
xmin |
m |
Lower x bound of detector opening |
0 |
|
xmax |
m |
Upper x bound of detector opening |
0 |
|
ymin |
m |
Lower y bound of detector opening |
0 |
|
ymax |
m |
Upper y bound of detector opening |
0 |
|
zmin |
m |
Lower z bound of detector opening |
0 |
|
zmax |
m |
Upper z bound of detector opening |
0 |
|
bufsize |
1 |
Number of events to store. Use 0 to store all |
0 |
|
restore_neutron |
1 |
If set, the monitor does not influence the neutron state |
0 |
|
live_calc |
1 |
If set, the monitor directly outputs the resolution matrix |
1 |
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Links
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Component source code found in file Res_monitor.comp.
