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RSS Collimator Repair

What are we doing to fix it . We = Darragh Eric Francois Jonathan Lisa Martin Vic and Myself . RSS Collimator Repair. Camera. Dispersive Elements. Collimator. Triplet Fused Silica, NaCl , LL5610, Sylgard Throughput OK, Is the Sylgard Failing?. Quadruplet

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RSS Collimator Repair

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  1. What are we doing to fix it. We = Darragh Eric Francois Jonathan Lisa Martin Vic and Myself RSS Collimator Repair

  2. Camera Dispersive Elements Collimator Triplet Fused Silica, NaCl, LL5610, SylgardThroughput OK, Is the Sylgard Failing? Quadruplet Fused Silica, CaF2, LL5610, Sylgard, Throughput OK, Is the Sylgard Failing? Beam Splitter Calcite, LL5610, Sylgard, Sylgard Failure. RSS Collimator Repair Triplet CaF2, NaCl, LL3421, Sylgard, Throughput Failure. Field Lens Fused Quartz, CaF2, LL3421, Sylgard, Throughput Failure. Doublet Fused Silica, CaF2, LL5610, Sylgard, Coating Failure? Sylgard Failure?

  3. RSS Collimator Repair • Project in a re-definition phase. • Does LL3421 damage the lens surfaces? • No – Oil change maintenance till we find culprit material. • Yes – Dump fluid and change opto-mechanical design • Is Sylgard and LL5610 compatible? • No – Dump fluid and figure what to do about the camera • Yes – Figure out why there is a bubble in the doublet. • Do we need to dump fluid coupling? • LL3421, LL5610 or both?

  4. How do we answer these Questions • Remove RSS • Measure through put of individual lens groups • Before and after an oil change • See if lens surfaces are damaged • Inspect Doublet Bond • Determine if Bond is failing. • Compare the fluid from the Doublet to the Camera Fluid. • Does the reaction with Sylgard leave a tell tale trace? • What do we do when the test are inconclusive?

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