|
Following the observation that when rotating M2 plan mirror of SBox the deformation position of the mode changes.
M2 was replaced with M2 spare of SBox
images of the mirror front side attached before and after cleaning, no spots at the center, but there seems to be 2 spots far from the center of the mirror.
After comparing with old images of M2 SBox spare, they do not appear to be damages, but dust !! (old image attached, taken on 10/12/2020, was never opened after)
| Manar Amer wrote: |
|
PowerPoint shows the detailed images of all the mirrors before and after cleaning.
Images of SBox mirrors and M1 from Gamma factory attached only for the front after cleaning
the lines showing are on the back of the mirrors, they come from the spinning mount the mirrors are fixed on in the spin-coater.
Naming code :
M#BB - M# mirror Back Before cleaning
M#BA - M# mirror Back After cleaning
M#FB - M# mirror Front Before cleaning
M#FA - M# mirror Front After cleaning
G : Gamma factory
| Manar Amer wrote: |
|
Images of the SBox mirrors cleaned at the same time when the cavity was aligned.
Directly from the spincoater to the SBox directly.
PowerPoint attached shows details
| Manar Amer wrote: |
|
Used the spincoater and pure water to clean dielectric mirrors which will be installed inside the SBox for directing the reflection line.
The method : place pure alchole on mirror - wipe it using white sterile tissue (in one direction) - clean with pure water in spincoater suing cotton swap .
After multible rounds, the result in the images was obtained. there is still a significant amount of dust particles (not all could be dust!!).
Not sure if the reason is the cleaning method ?? will invistegate it more !!!
| Manar Amer wrote: |
|
In preparation for cleaning the mirrors.
The spincoater has been moved with its bump into the sas of the SBox.
The pure water used will be provided by Alice, as the previous source in the workshop is not available.
|
|
|
|
|