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Entry  Wed Mar 21 00:40:01 2018, Craig, DailyProgress, scatter, The Sentinels: Transmission Table Black Glass Beam Dumps TheSentinels_TransmissionTableBlackGlassBeamDumps.jpg
    Reply  Wed Mar 21 11:07:17 2018, awade, DailyProgress, scatter, The Sentinels: Transmission Table Black (Green) Glass Beam Dumps 
Message ID: 2149     Entry time: Wed Mar 21 00:40:01 2018     Reply to this: 2150
Author: Craig 
Type: DailyProgress 
Category: scatter 
Subject: The Sentinels: Transmission Table Black Glass Beam Dumps 

Scattering is a huge problem in our setup, and we aren't sure where exactly the offending scattering is coming from.  The most basic thing to do is to go through our entire optics table, find all stray beams, dump them, then see what kind of spectrum we're left with.  At that point we can try more advanced techniques, like buzzing and damping resonant optics or upconverting the scatter source out of our band.

Many stray beams are coming directly from our cavities and polluting our transmission table.  Also, some beams are trying to make their way back into the can.  These beams tend to be close to the main beam, making dumping difficult.
To aid with dumping these mutant beams, I have created what I call the Sentinels.  The Sentinels stand guard at the transmission window of the vaccan, daring any puny beams to interfere with the main beam.
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