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phase2:layout [2015/01/26 14:37] – ngadiuba | phase2:layout [2015/01/26 17:48] (current) – dsalerno | ||
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+ | One module is always located centrally so that the number of modules in a rod is always an odd number. For example, numModules 3 will result in 7 modules per rod. | ||
+ | | ||
+ | You can actually change the length of a layer (including innermost and outermost layers) by specifying the number of modules to use/rod for this layer: | ||
+ | |||
+ | Barrel PXB { | ||
+ | numLayers 4 | ||
+ | numModules 4 | ||
+ | innerRadius 29 | ||
+ | outerRadius 161 | ||
+ | width 22 | ||
+ | length 71 | ||
+ | ... | ||
+ | | ||
+ | Layer 1 { | ||
+ | radiusMode fixed | ||
+ | placeRadiusHint 29 | ||
+ | numModules 3 | ||
+ | } | ||
+ | | ||
+ | ... | ||
+ | } | ||
+ | |||
+ | Here are some resolutions after making the following changes: | ||
+ | * extend layer 1 and 2 by one module | ||
+ | * bring layer 2 closer to beam pipe (58 mm) | ||
+ | * move layer 3 and 4 out (120 mm, 180 mm) | ||
+ | * replace disc 1 (of 2 rings) with 3 discs of 1 ring each (at 265 mm, 285 mm, and 335 mm) | ||
+ | {{: | ||
+ | 1 GeV layout 02 TDR | ||
+ | C I F VF WF C I F VF WF | ||
+ | pT 1.84731 2.88889 3.91328 3.84539 11769598 2.34579 3.62749 3.65583 3.90297 11769598 | ||
+ | d 0.00608 0.0077 0.01112 0.0151 39535 0.00625 0.00816 0.0112 0.01446 39535 | ||
+ | phi 0.00209 0.00292 0.00412 0.00534 10850 0.00224 0.00321 0.00415 0.00482 10850 | ||
+ | z0 0.00748 0.01362 0.03911 0.11751 0.25247 | ||
+ | |||
+ | IDEAL | ||
+ | 1 GeV layout 02 TDR | ||
+ | C I F VF WF C I F VF WF | ||
+ | pT 0.49249 0.64322 0.70456 0.88607 523298 0.55644 0.86291 0.68587 1.01757 523298 | ||
+ | d 0.00242 0.00245 0.0025 0.00334 1557 0.00255 0.00268 0.00248 0.00406 1557 | ||
+ | phi 0.0006 0.00069 0.00068 0.00086 454 0.00062 0.0008 0.00066 0.00102 454 | ||
+ | z0 0.00256 0.00262 0.00355 0.01215 0.06125 0.00277 0.00288 0.00358 0.01828 0.06125 |