IN-SITU M1 WASHING RESULTS

0.9m tel.

• No C02 cleaning, semi-annual wash

• 22 months, 3 washs

• From fresh Al: only 1%reflection loss and 0.2% scatter loss!

1.5m tel.

• Monthly C02 cleaning (for 19 months), semi-annual wash

• 25 months, 3 washs

• From fresh Al: only 1%reflection loss and 0% scatter loss!

4m tel.

• Bi-weekly C02 cleaning, semi-annual wash

• 6 months, 1 wash

• From fresh Al: 0%reflection loss and 0.1% scatter loss!

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