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Entry  Tue May 1 03:12:58 2012, frank, tara, DailyProgress, Acoustics, acoustic enclosure for input beam IMG_0849.jpg
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Message ID: 952     Entry time: Thu May 3 22:26:14 2012     In reply to: 951     Reply to this: 953
Author: frank, tara 
Type: DailyProgress 
Category: Acoustics 
Subject: acoustic enclosure for input beam 

We are still working on the acoustic shielding panels. The work should be done by tomorrow.

IMG_0855.JPGIMG_0856.jpg

Fig1: Left, one panel with damping foam + black pad on top( to prevent scattered light). Right,a panel with two layers of good damping material with a damping pad under it. This type can damp acoustic noise pretty well.

We prepared all sides of the acoustic box. However, we don't have enough damping materials, so all the panels are not similar, but they all have some soft foam to provide acoustic damping. All the holes for cables/ beam are marked and will be drilled tomorrow. 

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