Difference: EndcapLayout (9 vs. 10)

Revision 102013-09-01 - JoleenPater

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Pixel Endcaps in the LoI (Cartigny) Layout

The drawings below show 3 possible types of pixel endcap disks in the LoI, or "Cartigny" layout of the upgraded inner tracker. The original Cartigny layout called for six disks, at the z positions shown in the table below, with outer active radius of 315mm and inner active radii of 135mm (disks 1-4), 175mm (disk5) and 215mm (disk 6). These specifications can not be met exactly with the current module designs and assuming the simplest possible disk layout (shown below), where all modules are fixed directly to the front and back surfaces of a flat disk.

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LoI backup document

The pixel disk backup document for the Phase-II Letter of Intent can be found here: http://cds.cern.ch/record/1515010/files/ATL-UPGRADE-PUB-2013-004.pdf

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Sergey Burdin's "Concentric Diskettes" Endcap Layout

Caculation J.Pater using spreadsheet found below:

Using the same module dimensions given above, assuming the same active coverage as the quad-hex-hex LoI-layout disks:

Physical outer radius of ring 2 modules: centres not corners - corners will extend further 315.2
Active outer radius of ring 2 modules: centres not corners 315.0 same as LoI
Active inner radius of ring 2 modules: centres not corners 274.6
Physical inner radius of ring 2 modules: centres not corners 274.4



Physical outer radius of ring 1 modules: centres not corners - corners will extend further 253.0
Active outer radius of ring 1 modules: centres not corners 252.7
active CENTRE of ring 2 modules 232.5
Active inner radius of ring 1 modules: centres not corners 212.3
Physical inner radius of ring 1 modules: centres not corners 212.1



Physical outer radius of ring 0 modules: centres not corners - corners will extend further 190.7
Active outer radius of ring 0 modules: centres not corners 190.5
Active inner radius of ring 0 modules: centres not corners 150.1 same as LoI
Physical inner radius of ring 0 modules: centres not corners 149.9






Number of modules per ring, rounded up to be divisible by 4 (front/back, left/right clamshell):


Ring 2: 60  
Ring 1: 48  
Ring 0: 36  


Jo's spreadsheet for calculating numbers of rings

PixelDiskDimensions.xlsx

 
META FILEATTACHMENT attachment="25_01_13_Flex-tapes_for_the_ATLAS_pixel_Half_Disk_01-21.pdf" attr="" comment="Yiorgos' slides on disk bus tape design: pages 1-21" date="1360332434" name="25_01_13_Flex-tapes_for_the_ATLAS_pixel_Half_Disk_01-21.pdf" path="25_01_13 Flex-tapes for the ATLAS pixel Half Disk_01-21.pdf" size="10153992" stream="25_01_13 Flex-tapes for the ATLAS pixel Half Disk_01-21.pdf" tmpFilename="/usr/tmp/CGItemp8387" user="JoleenPater" version="1"
META FILEATTACHMENT attachment="25_01_13_Flex-tapes_for_the_ATLAS_pixel_Half_Disk_22-end.pdf" attr="" comment="Yiorgos' slides on disk bus tape design: pages 22 to end" date="1360332535" name="25_01_13_Flex-tapes_for_the_ATLAS_pixel_Half_Disk_22-end.pdf" path="25_01_13 Flex-tapes for the ATLAS pixel Half Disk_22-end.pdf" size="11543912" stream="25_01_13 Flex-tapes for the ATLAS pixel Half Disk_22-end.pdf" tmpFilename="/usr/tmp/CGItemp8390" user="JoleenPater" version="1"
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META FILEATTACHMENT attachment="OneFoamWedge.jpg" attr="" comment="single-row half-disk cooling pipe" date="1361461000" name="OneFoamWedge.jpg" path="OneFoamWedge.jpg" size="1038221" stream="OneFoamWedge.jpg" tmpFilename="/usr/tmp/CGItemp28673" user="JoleenPater" version="1"
META FILEATTACHMENT attachment="PrototypePipes.jpg" attr="" comment="single-row half-disk cooling pipe" date="1361461014" name="PrototypePipes.jpg" path="PrototypePipes.jpg" size="771748" stream="PrototypePipes.jpg" tmpFilename="/usr/tmp/CGItemp28643" user="JoleenPater" version="1"
META FILEATTACHMENT attachment="MP12003_00_A2.jpg" attr="" comment="single-row half-disk cooling pipe" date="1361461245" name="MP12003_00_A2.jpg" path="MP12003_00 A2.jpg" size="271673" stream="MP12003_00 A2.jpg" tmpFilename="/usr/tmp/CGItemp28517" user="JoleenPater" version="1"
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META FILEATTACHMENT attachment="PixelDiskDimensions.xlsx" attr="h" comment="" date="1378034470" name="PixelDiskDimensions.xlsx" path="PixelDiskDimensions.xlsx" size="22306" stream="PixelDiskDimensions.xlsx" tmpFilename="/usr/tmp/CGItemp18716" user="JoleenPater" version="1"
 
META TOPICMOVED by="JoleenPater" date="1376430153" from="ATLAS/PUUKA.WP2PixelDiskMechanics" to="ATLAS/PUUKA.EndcapLayoutAndEngineeringDesign"
 
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