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Entry  Mon Aug 13 15:31:09 2012, steve, Update, General, larger optical tables at the ends ETMYtable.jpgETMY4X3.jpg
    Reply  Mon Aug 13 18:00:30 2012, jamie, Update, General, larger optical tables at the ends 
       Reply  Tue Aug 14 15:58:44 2012, Jenne, Update, General, Translation to English: larger optical tables at the ends 
    Reply  Wed Aug 15 16:01:47 2012, steve, Update, General, larger optical tables at the ends ? bottleneck.jpg
       Reply  Wed Aug 22 11:41:20 2012, steve, Update, General, grout plate for optical table at the ends IMG_1561.JPG08231201.PDF
          Reply  Thu Sep 27 19:03:06 2012, Manasa, Update, 40m Upgrading, New ETMX layout - Version 1.0 ETMX_OldNew.png
             Reply  Thu Sep 27 20:05:57 2012, Koji, Update, 40m Upgrading, New ETMX layout - Version 1.0 
                Reply  Fri Sep 28 07:49:30 2012, Steve, Update, 40m Upgrading, New ETMX layout - Version 1.0 
Message ID: 7194     Entry time: Wed Aug 15 16:01:47 2012     In reply to: 7160     Reply to this: 7248
Author: steve 
Type: Update 
Category: General 
Subject: larger optical tables at the ends ? 

The drawing of the 4' x 2'  table cover can be seen at entry  #6190 The new proposed wall #7106  The yellow acrylic would be ~ 0.25" thick and it will be the inside. It is not shown on the drawing.

Question remaining: should get a larger table 4' x 3' as outlined by red lines and make new cover to fit this

The oplev beam path needs larger incident angle to get in and out of the chamber: REMOVE BOTTLENECK for easy traffic

Moving the existing table closer to ETMY chamber - as Jamie suggested-  would help but there is no room for this solution.

The larger table solve this issue and leave more room for initial pointing, arm transmitted and future experiments.

Other benefits: no tube to make between table and chamber. It is easier to make the the larger box air tight.

The new isolation box with feed through, cover, seals will cost $4-5K ea

 

 

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