Replace or refigure dewar window?

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General repo for everything related to 90Prime (docs, diagrams, thoughts)

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Replace or refigure dewar window? #8

Closed dsand closed 4 years ago

dsand commented 4 years ago

We know there is a scratch of some sort in the dewar window. Is it just in the AR coating, or is it in the glass?

The answer to this question will decide the next step: window replacement or simply get a new AR coating.

dsand commented 4 years ago

Based on pictures taken of the dewar window, we have decided to replace the dewar window at this point. The scratches seem deep and refurbishment seems dicey.

Pictures of the dewar scratch are posted here: 90Prime Dewar Window Scratch Pics.

Thanks to @jhoscheidt for helping out with the pics.