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 Mon Oct 12 17:27:20 2009, Koji, Configuration, SAFETY, Stray beam blocking 
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 Mon Oct 12 18:38:07 2009, Jenne, Configuration, SAFETY, Stray beam blocking
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Mon Oct 12 20:01:13 2009, Koji, Configuration, SAFETY, Stray beam blocking
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Mon Oct 12 22:15:15 2009, rana, Configuration, PSL, Stray beam blocking
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Mon Oct 12 19:53:44 2009, Koji, Configuration, SAFETY, Stray beam blocking
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Message ID: 2085
Entry time: Mon Oct 12 19:53:44 2009
In reply to: 2082
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| Author: |
Koji |
| Type: |
Configuration |
| Category: |
SAFETY |
| Subject: |
Stray beam blocking |
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I aligned the EOM and the beam to the PMC.
The beam is still hitting the bottom of the EOM aperture,
but the further lowering the EOM reduces the PMC transmission.
So I put my compromise.
The work restored the PMC transmission to over 2.4.
Finally I centered the beams on to the MC WFSs.
As a result, the MC Trans recovered 7.5. |