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< | Sergey Burdin's "Open Rings" Endcap Layout
(Previously known by a number of different names e.g. "concentric diskettes".)
A couple of talks showing the basic idea: 2013-06-26_Burdin_Rings.pdf 
and a later update with a more sophisticated layout: 2013-08-27_Jones_Lpool_Status.pdf.
Caculation of ring sizes (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 (dimensions are in mm):
| 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 | | 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 | | 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 |
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| Ring 1: |
48 |
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| Ring 0: |
36 |
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Jo's spreadsheet for calculating numbers of rings: PixelDiskDimensions.xlsx
6-Feb-2014: Peter Sutcliffe's step files for the 3 ring types: np49-04-17.stp, np49-04-19.stp, np49-04-21.stp
BELOW HERE IS OLDER INFORMATION - may no longer be relevant
Pixel Endcaps in the LoI (Cartigny) Layout |
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> | Pixel Endcaps in the LoI (Cartigny) Layout
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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. |
| | 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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| META FILEATTACHMENT |
attachment="Disk0-3_QHH_Halfdisk.tiff" attr="" comment="Quad-Hex-Hex (QHH) Halfdisk" date="1361376790" name="Disk0-3_QHH_Halfdisk.tiff" path="Disk0-3_QHH_Halfdisk.tiff" size="96204" stream="Disk0-3_QHH_Halfdisk.tiff" tmpFilename="/usr/tmp/CGItemp28391" user="JoleenPater" version="1" |
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| META FILEATTACHMENT |
attachment="Disk0-3_QHH_Halfdisk.jpg" attr="" comment="Quad-Hex-Hex (QHH) Halfdisk" date="1361377048" name="Disk0-3_QHH_Halfdisk.jpg" path="Disk0-3_QHH_Halfdisk.jpg" size="178779" stream="Disk0-3_QHH_Halfdisk.jpg" tmpFilename="/usr/tmp/CGItemp28473" user="JoleenPater" version="1" |
| META FILEATTACHMENT |
attachment="Disk4_MixedSizes.jpg" attr="" comment="Quad-Quad-Hex (QQH) disk" date="1361377278" name="Disk4_MixedSizes.jpg" path="Disk4_MixedSizes.jpg" size="159283" stream="Disk4_MixedSizes.jpg" tmpFilename="/usr/tmp/CGItemp28453" user="JoleenPater" version="1" |
| META FILEATTACHMENT |
attachment="Disk5_MixedSizes.jpg" attr="" comment="Quad-Hex (QH) disk" date="1361377311" name="Disk5_MixedSizes.jpg" path="Disk5_MixedSizes.jpg" size="140751" stream="Disk5_MixedSizes.jpg" tmpFilename="/usr/tmp/CGItemp28568" user="JoleenPater" version="1" |
| 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" |
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| META FILEATTACHMENT |
attachment="2013-06-26_Burdin_Rings.pdf" attr="" comment="Sergey's initial talk introducing the 'concentric diskettes' layout" date="1378729666" name="2013-06-26_Burdin_Rings.pdf" path="2013-06-26_Burdin_Rings.pdf" size="336346" stream="2013-06-26_Burdin_Rings.pdf" tmpFilename="/usr/tmp/CGItemp18825" user="JoleenPater" version="1" |
| META FILEATTACHMENT |
attachment="2013-08-27_Jones_Lpool_Status.pdf" attr="" comment="Update from Liverpool, last half concerns the 'concentric diskettes' layout" date="1378729690" name="2013-08-27_Jones_Lpool_Status.pdf" path="2013-08-27_Jones_Lpool_Status.pdf" size="1295564" stream="2013-08-27_Jones_Lpool_Status.pdf" tmpFilename="/usr/tmp/CGItemp18893" user="JoleenPater" version="1" |
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| META FILEATTACHMENT |
attachment="np49-04-17.stp" attr="h" comment="" date="1391698730" name="np49-04-17.stp" path="np49-04-17.stp" size="529175" user="JoleenPater" version="1" |
| META FILEATTACHMENT |
attachment="np49-04-19.stp" attr="h" comment="" date="1391698739" name="np49-04-19.stp" path="np49-04-19.stp" size="413655" user="JoleenPater" version="1" |
| META FILEATTACHMENT |
attachment="np49-04-21.stp" attr="h" comment="" date="1391698746" name="np49-04-21.stp" path="np49-04-21.stp" size="376710" user="JoleenPater" version="1" |
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| META FILEATTACHMENT |
attachment="2013-11-OpenRings3D-simple.png" attr="" comment="" date="1391698988" name="2013-11-OpenRings3D-simple.png" path="2013-11-OpenRings3D-simple.png" size="189703" user="JoleenPater" version="1" |
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| META TOPICMOVED |
by="JoleenPater" date="1402577406" from="ATLAS/PUUKA.EndcapLayoutAndEngineeringDesign" to="ATLAS/PUUKA.EndcapLayout" |
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