Laser Interferometer Power supply was found switched off last night.
toecutter4ranger at gmail.com
Tue Mar 29 11:54:13 PDT 2011
Greetings Raith Users:
Please keep an eye out for strange setting on the tool and for starngers
entering the Ebeam Lab.
*Subject:* Comment raith SNF 2011-03-29 11:47:58: laser for LIStage was
found turned off<raith-pcs at snf.stanford.edu?subject=Comment%20raith%20SNF%202011-03-29%2011%3A47%3A58%3A%20laser%20for%20LIStage%20was%20found%20turned%20off>
*From:* jwc at snf.stanford.edu
*Date:* Tue, 29 Mar 2011 11:47:59 -0700
For reasons unknown the laser power supply was found to have been
tripped off manually
sometime late last evening. Appears someone actuated the switch as it
is a guarded
switch and it was found this morning in the 'open' 'power off ' position.
Upon actuation the laser quickly came up in power and phase locked as expected.
All stage operations are now normal.
*Users are reminded that the Ebeam lab is a restricted access area and
that they are
to confront anyone whom comes into this area that is not a qualified
User on the tools.*
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