Cold, anodized surfaces

[Mark Waterson]

Posted to CCD-world:
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When I worked for Argonne National Labs on their Cryo particle
accelerators, anodizing anything in the dewar was verbotten (tho we
didn't have the specific data David O. mentions). People generally
stayed away from aluminum parts at all, actually. You would want a much
more chemically reactive surface than anodizing generates to be an
effective getteer anyway - the idea of the anodize is to prevent
reaction with the environment rather than encourage it.
-- 
   mfw

Mark Waterson     UH-IfA      Mees Solar Observatory
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