EndcapLayout < ATLAS/PUUKA

---+ "Open Rings" Endcap Layout

(Previously known by a number of different names e.g. "concentric diskettes".)
---++ Motivation and Description

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]]

---+ <b>OLDER INFORMATION:<br /></b>
---+++++ [[Pixel Endcaps in the LoI Layout]]

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
xlsx	PixelDiskDimensions.xlsx	r1	manage	21.8 K	2013-09-01 - 11:21	JoleenPater
stp	np49-04-17.stp	r1	manage	516.8 K	2014-02-06 - 14:58	JoleenPater
stp	np49-04-19.stp	r1	manage	404.0 K	2014-02-06 - 14:58	JoleenPater
stp	np49-04-21.stp	r1	manage	367.9 K	2014-02-06 - 14:59	JoleenPater

This topic: ATLAS/PUUKA > EndcapLayout
Topic revision: r16 - 2014-06-16 - JoleenPater