Difference between revisions of "Baffle Design"
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| − | = | + | =Baffles Design= |
| − | + | Designing baffles from ray traces requires GEMC runs without baffles, but detectors at the baffle z positions. | |
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| − | Seamus' Baffle Comparisons | + | [[Image:Fitpaths.png|500px|thumb|left|Fitting trajectory paths]] |
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| + | We define as fixed number of blocks which expand over a radius that will accept the full angular range from the whole target. Each block then has a range in phi, which we fit: | ||
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| + | <br> | ||
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| + | [[Image:Design desc.png|500px|thumb|left|Designing baffle openings]] | ||
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| + | These are then considered, for each block over all baffles, to carve out an opening which does not allow particles below a momentum from making it through. There is a maximum opening which is defined from the number of sectors, along with a minimum "dead zone" which prevents photons. | ||
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| + | [[Image:CLEOpaths.png|500px|thumb|left|CLEO Baffle openings (before introduction of wedge)]] | ||
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| + | =Older Baffle Comparisons= | ||
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| + | ==Seamus' Baffle Comparisons== | ||
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| − | + | [[Solid Baffle | Zhiwen's Evaluation of Eugene's Baffles in GEMC]] | |
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Revision as of 11:36, 24 September 2012
Contents
Baffles Design
Designing baffles from ray traces requires GEMC runs without baffles, but detectors at the baffle z positions.
We define as fixed number of blocks which expand over a radius that will accept the full angular range from the whole target. Each block then has a range in phi, which we fit:
These are then considered, for each block over all baffles, to carve out an opening which does not allow particles below a momentum from making it through. There is a maximum opening which is defined from the number of sectors, along with a minimum "dead zone" which prevents photons.
Older Baffle Comparisons
Seamus' Baffle Comparisons
| Eugene's BaBar Design in GEMC | [1] |
| Eugene's for Other Magnets | [2] |
| Basic New Designs | [3] |
| New design from ray tracing | [4] |
