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Entry  Wed Aug 3 09:40:13 2011, steve, Update, VAC, vent pzt2011Aug3.png
    Reply  Wed Aug 3 11:34:59 2011, kiwamu, Update, VAC, Re: vent 
Message ID: 5105     Entry time: Wed Aug 3 11:34:59 2011     In reply to: 5104
Author: kiwamu 
Type: Update 
Category: VAC 
Subject: Re: vent 

An important rule during the in-vac work :

   Do not change the incident axis of the X and Y green beams.

Because of the air flows and unusual pressure in the chambers, the DC alignment of the suspensions become less reliable in terms of the beam pointing reference.

The green beams will be considered as references during the vent.


The vacuum system is coming up to atm. The vent was started with slow N2 flow.

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