Adding LLNL optics #9
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jovoy
reviewed
Jun 19, 2023
optics/llnlWolter.rml
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| <constant name="pi" value="3.1415927" /> | ||
| </globals> | ||
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| <TRestAxionTrueWolterOptics name="xmm" verboseLevel="warning" > |
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Here no "true" (because llnl is cone shaped) and "llnl" for the name
optics/llnlWolter.rml
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| <parameter name="initialRadius" value="0cm"/> | ||
| </TRestSpiderMask> | ||
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| </TRestAxionTrueWolterOptics> |
optics/llnlWolter.rml
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| <TRestAxionTrueWolterOptics name="xmm" verboseLevel="warning" > | ||
| <parameter name="opticsFile" value="LLNL.Wolter" /> | ||
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| <parameter name="mirrorLength" value="150" /> |
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This should be the length of one mirror module (225mm or something?)
| <parameter name="substrate" value="SiO2" /> | ||
| </TRestAxionOpticsMirror> | ||
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| <TRestSpiderMask name="spider" verboseLevel="warning"> |
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Need to figure out how to make that into the 2 mm wide graphite spacers. they were in the center which is 90° from the y-axis (as it is on the x-axis) so I think putting the armsSeperationAngle at 90° (or 360°/4) would make sense. The width is here in degree but can probably also be put in mm somehow.
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This PR is the starting point to implement the LLNL telescope into REST. It includes the file with radii and angles of the mirrors and a simplified mirror definition.
It is simplified because it is assuming it is a bilayer, whereas in reality it is multilayer, but REST still does not support multilayer (see TRestAxionOpticsMirror). In this PR, the thicknesses of the outermost bilayer is used. However, not all the mirrors have the same thicknesses of each bilayer, although here the same is applied to all.
The correct reflectivities are calculated in PR #8