(r14) EndcapLayout < ATLAS/PUUKA

ATLAS/PUUKA Web>EndcapLayout (revision 14) (raw view)~~EditAttach~~

---++ 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: [[%ATTACHURL%/2013-06-26_Burdin_Rings.pdf][2013-06-26_Burdin_Rings.pdf]] [[%ATTACHURL%/2013-06-26_Burdin_Rings.pdf][<img align="right" alt="2013-11-OpenRings3D-simple.png" height="204" src="%ATTACHURL%/2013-11-OpenRings3D-simple.png" title="2013-11-OpenRings3D-simple.png" width="286" />]]

and a later update with a more sophisticated layout: [[%ATTACHURL%/2013-08-27_Jones_Lpool_Status.pdf][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):

<table border="0" cellpadding="0" cellspacing="0" style="width: 670px; height: 707px;"><col width="497"></col> <col span="2" width="75"></col> <tbody> <tr> <td height="13" width="497">Physical outer radius of ring 2 modules: centres not corners - corners will extend further</td> <td align="right" width="75">315.2</td> </tr> <tr> <td height="13">Active outer radius of ring 2 modules: centres not corners</td> <td align="right">315.0</td> </tr> <tr> <td height="13">Active inner radius of ring 2 modules: centres not corners</td> <td align="right">274.6</td> </tr> <tr> <td height="13">Physical inner radius of ring 2 modules: centres not corners</td> <td align="right">274.4</td> </tr> <tr> <td height="13"> </td> <td> </td> </tr> <tr> <td height="13">Physical outer radius of ring 1 modules: centres not corners - corners will extend further</td> <td align="right">253.0</td> </tr> <tr> <td height="13">Active outer radius of ring 1 modules: centres not corners</td> <td align="right">252.7</td> </tr> <tr> <td height="13">active CENTRE of ring 2 modules</td> <td align="right">232.5</td> </tr> <tr> <td height="13">Active inner radius of ring 1 modules: centres not corners</td> <td align="right">212.3</td> </tr> <tr> <td height="13">Physical inner radius of ring 1 modules: centres not corners</td> <td align="right">212.1</td> </tr> <tr> <td height="13"> </td> <td> </td> </tr> <tr> <td height="13">Physical outer radius of ring 0 modules: centres not corners - corners will extend further</td> <td align="right">190.7</td> </tr> <tr> <td height="13">Active outer radius of ring 0 modules: centres not corners</td> <td align="right">190.5</td> </tr> <tr> <td height="13">Active inner radius of ring 0 modules: centres not corners</td> <td align="right">150.1</td> </tr> <tr> <td height="13">Physical inner radius of ring 0 modules: centres not corners</td> <td align="right">149.9</td> </tr> <tr> <td height="13"> </td> <td> </td> </tr> <tr> <td height="13"> </td> <td> </td> </tr> <tr> <td height="13">Number of modules per ring, rounded up to be divisible by 4 (front/back, left/right clamshell):</td> <td> </td> </tr> </tbody> </table>

| Ring 2: |  60 | |
| Ring 1: |  48 | |
| Ring 0: |  36 | |
<b>Jo's spreadsheet for calculating numbers of rings: </b> [[%ATTACHURL%/PixelDiskDimensions.xlsx][PixelDiskDimensions.xlsx]]

*6-Feb-2014: Peter Sutcliffe's step files for the 3 ring types:* [[%ATTACHURL%/np49-04-17.stp][np49-04-17.stp]], [[%ATTACHURL%/np49-04-19.stp][np49-04-19.stp]], [[%ATTACHURL%/np49-04-21.stp][np49-04-21.stp]]

---+ *BELOW HERE IS OLDER INFORMATION - may no longer be relevant*
---+++++ 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.

<img alt="Disk0-3_QHH_Halfdisk.jpg" height="250" src="%ATTACHURL%/Disk0-3_QHH_Halfdisk.jpg" title="Disk0-3_QHH_Halfdisk.jpg" width="359" /><img alt="Disk4_MixedSizes.jpg" height="250" src="%ATTACHURL%/Disk4_MixedSizes.jpg" title="Disk4_MixedSizes.jpg" width="318" /><img alt="Disk5_MixedSizes.jpg" height="250" src="%ATTACHURL%/Disk5_MixedSizes.jpg" title="Disk5_MixedSizes.jpg" width="322" />

The closest match to the requested dimensions are illustrated in the drawings above. These disks use 'quad' modules (modules built on 4 FEI4 chips in a 2x2 grid placement) and 'hex' modules (built on 6 chips in a 2x3 grid). Disks 1-4 would have the 'QHH' geometry shown in the leftmost picture ('QHH' for Quad-Hex-Hex as the innermost ring is made of quad modules and the middle and outer rings are made of hex modules). Disk 5 is QQH and Disk 6 is QH. This results in the dimensions shown in the table below:

<table align="center" border="1" cellpadding="1" cellspacing="2"> <tbody> <tr> <td>z (mm)</td> <td>Rinner (active) (mm)</td> <td>Router (active) (mm)</td> </tr> <tr> <td>822</td> <td>150.1</td> <td>315.0</td> </tr> <tr> <td>960</td> <td>150.1</td> <td>315.0</td> </tr> <tr> <td>1140</td> <td>150.1</td> <td>315.0</td> </tr> <tr> <td>1360</td> <td>150.1</td> <td>315.0</td> </tr> <tr> <td>1600</td> <td>170.6</td> <td>315.0</td> </tr> <tr> <td>1890</td> <td>212.4</td> <td>315.0</td> </tr> </tbody> </table> Dimensions assumed:
   * 0.45mm gap between adjacent FEI4s in a module
   * sensor dead edge 0.2mm radially
   * a hex module is 61.3mm long radially
   * a quad module is 40.85mm long radially
   * &gt;0.2mm gap required between adjacent modules on a disk, to isolate HV
---+++++ 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
---+++++

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
pdf	2013-06-26_Burdin_Rings.pdf	r1	manage	328.5 K	2013-09-09 - 12:27	JoleenPater	Sergey's initial talk introducing the 'concentric diskettes' layout
pdf	2013-08-27_Jones_Lpool_Status.pdf	r1	manage	1265.2 K	2013-09-09 - 12:28	JoleenPater	Update from Liverpool, last half concerns the 'concentric diskettes' layout
png	2013-11-OpenRings3D-simple.png	r1	manage	185.3 K	2014-02-06 - 15:03	JoleenPater
pdf	25_01_13_Flex-tapes_for_the_ATLAS_pixel_Half_Disk_01-21.pdf	r1	manage	9916.0 K	2013-02-08 - 14:07	JoleenPater	Yiorgos' slides on disk bus tape design: pages 1-21
pdf	25_01_13_Flex-tapes_for_the_ATLAS_pixel_Half_Disk_22-end.pdf	r1	manage	11273.4 K	2013-02-08 - 14:08	JoleenPater	Yiorgos' slides on disk bus tape design: pages 22 to end
jpg	ATLAS_Pixel_Single_-_Row_Half_Disk.jpg	r1	manage	80.5 K	2013-02-21 - 15:35	JoleenPater	single-row half-disk cooling pipe
jpg	Back.jpg	r1	manage	42.9 K	2013-02-08 - 16:25	JoleenPater	Sketch of back side of single-row half-disk prototype
jpg	Disk0-3_QHH_Halfdisk.jpg	r1	manage	174.6 K	2013-02-20 - 16:17	JoleenPater	Quad-Hex-Hex (QHH) Halfdisk
tiff	Disk0-3_QHH_Halfdisk.tiff	r1	manage	93.9 K	2013-02-20 - 16:13	JoleenPater	Quad-Hex-Hex (QHH) Halfdisk
jpg	Disk4_MixedSizes.jpg	r1	manage	155.5 K	2013-02-20 - 16:21	JoleenPater	Quad-Quad-Hex (QQH) disk
jpg	Disk5_MixedSizes.jpg	r1	manage	137.5 K	2013-02-20 - 16:21	JoleenPater	Quad-Hex (QH) disk
jpg	Front.jpg	r1	manage	42.0 K	2013-02-08 - 16:25	JoleenPater	Sketch of front side of single-row half-disk prototype
jpg	GluingJig.jpg	r1	manage	150.9 K	2013-02-21 - 15:36	JoleenPater	single-row half-disk cooling pipe
jpg	MP12003_00_A2.jpg	r1	manage	265.3 K	2013-02-21 - 15:40	JoleenPater	single-row half-disk cooling pipe
jpg	OneFoamWedge.jpg	r1	manage	1013.9 K	2013-02-21 - 15:36	JoleenPater	single-row half-disk cooling pipe
jpg	Prototype-sandwich.jpg	r1	manage	633.7 K	2013-02-21 - 15:33	JoleenPater
jpg	PrototypePipes.jpg	r1	manage	753.7 K	2013-02-21 - 15:36	JoleenPater	single-row half-disk cooling pipe

Topic revision: r14 - 2014-02-06 - JoleenPater

ATLAS/PUUKA