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Entry   Microscope and cleaning of SBOX mirrors, posted by Loïc Amoudry at Optical room about lasers and optics resume_nettoyage_apres_sejour_dans_K-BOX_et_montee_en_puissance.PNG
    Reply   Power up to 48kW crater effect again, posted by Loïc Amoudry at Optical room about lasers and optics 3A_136mWtrans.png4A_126mWtrans.pngmode_strange.png
Message ID: 46     Entry time: Thu Jan 9 16:54:05 2020     Reply to this: 57
 Author: Loïc Amoudry 
 Status: Fixed 
 Type: report 
 Category: lasers and optics 
 Location: Optical room 
 Title: Microscope and cleaning of SBOX mirrors 

The mirrors went in the cavity the 28th of november (We did several power up to 30kW stored and only one to 40kW then the power went down to 2kW during the run).

Microscope study shows that mirrors get some dust during the handling [travel from microscope to SBOX --> installation --> in SBOX for +1month and power up --> travel to microscope].

Almost all of these dusts can be removed with cleaning.

There is only one important difference between 28th of november and today, a large spot on M1. 

Attachment 1: resume_nettoyage_apres_sejour_dans_K-BOX_et_montee_en_puissance.PNG  720 kB  | Show | Show all
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