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Entry  Tue Jan 4 02:58:53 2011, Jenne, Update, IOO, Power into Mode Cleaner increased 
    Reply  Tue Jan 4 11:06:32 2011, Koji, Update, IOO, Power into Mode Cleaner increased 
       Reply  Tue Jan 4 13:57:48 2011, kiwamu, Update, IOO, incident mirror changed from 45deg to 0 deg 
          Reply  Wed Jan 5 03:06:02 2011, kiwamu, Update, IOO, beam spots on MC mirrors 
       Reply  Tue Jan 4 18:37:18 2011, Jenne, Update, IOO, MCWFS aligned 
Message ID: 4110     Entry time: Wed Jan 5 03:06:02 2011     In reply to: 4105
Author: kiwamu 
Type: Update 
Category: IOO 
Subject: beam spots on MC mirrors 

I checked the spot positions on MC1 and MC3 by running Yuta's A2L script.

The amounts of the off-centering were good except for YAW of MC1.

 So we have to adjust the YAW alignment of the beam axis by steering the mirrors at the PSL table.

- - - (measured off-centering) - - - 

MC1_PIT  =  -0.711 mm

MC1_YAW =  1.62 mm

MC3_PIT  =   -0.0797 mm

MC3_YAW  =  - 0.223 mm

 

Quote:

We will check the spot positions more accurately by A2L technique.

 

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