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Message ID: 20     Entry time: Fri Mar 18 09:18:38 2022
Author: Rodolfo 
Category: Accelerator 
Subject: Vacuum leak, ODR 
After the beaking out process we got a vacuum leak in one of the MgF2 windows (Referenz: PMT South) of the optical detection region (ODR) Stand 17.03.2022. In order to avoid breaking the vacuum again and a second beaking out process we had to spread vacuum seal on the window.

The window shows now no leaks, Stand 18.03.2022. We are allowed to install a detector on this viewport, as soon as the detector does not have contact with the window (we got the consent of our vacuum expert). Bild: K. König.
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MgF2-Window_VACSeal.jpg
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