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Entry  Mon May 24 07:53:57 2010, steve, Configuration, PEM, air cond. just turned ON acoff.jpg
    Reply  Tue May 25 09:12:46 2010, kiwamu, Configuration, Green Locking, effect from air conditioner green_spot.png
Message ID: 2980     Entry time: Tue May 25 09:12:46 2010     In reply to: 2972
Author: kiwamu 
Type: Configuration 
Category: Green Locking 
Subject: effect from air conditioner 

We should completely turn off the air conditioner when working on green locking.

Even if green beams propagates inside of chambers, the air conditioner does affect the spatial jitter of the beam. 

The attached picture was taken when Steve and I were seeing how the green beam jittered. 

At that time the beam was injected from the end table and going through inside of the ETM, the ITM and the BS camber.

Eventually it came out from the camber and hit the wall outside of the chamber. It was obvious, we could see the jittering when the air cond. was ON.

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