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equipment:zeiss-dsm-962 [2025/09/20 14:56] – q3kequipment:zeiss-dsm-962 [2026/02/14 17:37] (current) – [Setting up the vibration isolation] rahix
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   - The system should now be operational.   - The system should now be operational.
  
-==== Venting the column ===+==== Venting the column ====
  
 To vent the column (eg. to change samples or inspect/replace filament): To vent the column (eg. to change samples or inspect/replace filament):
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   - Open chamber / gun, do your work, close it.   - Open chamber / gun, do your work, close it.
   - Press the EVAC button on the vacuum control panel.   - Press the EVAC button on the vacuum control panel.
 +
 +==== Setting up the vibration isolation ====
 +
 +Before imaging, you will need to set up the vibration isolation of the SEM column.  This is currently a manual process which works as follows:
 +
 +  - At the back of the SEM you will find 3 translucent blue tubes, each ending in an isolation valve and a tire valve adapter.  You will also find a bike pump ready right next to them.
 +    {{:equipment:20260214_isolation-valves.jpg?400|}}
 +  - Connect the bike pump to the tube labelled ''FRONT'' that runs deepest into the SEM, connecting to the front isolation bellows (this tube is split to connect to both front bellows at the same time).
 +  - Pump up the bellows to 2.9 barg.  After reaching that pressure, the bellows start suddenly moving quickly.  You will notice the front of the SEM column moving up.
 +  - Immediately stop pumping and go very slowly.
 +  - Close the blue isolation valve on the tube and disconnect the bike pump.  Carefully release some air using the isolation valve until the bellows height is about half-way.
 +  - You want the bellows to be roughly around the center of their extension range.  Release some air through the tire valve if necessary.
 +  - After pumping up the front bellows, attach the bike pump to one of the back bellows.  The tube is labelled ''BACK1''.
 +  - Repeat the pumping procedure detailed above.
 +  - Finally pump up the other back bellow (''BACK2'') using the same method.
 +
 +You can find more info in the log entries ([[equipment:zeiss-dsm-962:log#day_2025-08-23_q3k_rahix_ln_rob_2x_guest|first]], [[equipment:zeiss-dsm-962:log#day_2026-02-14_rahix|second]]) when we set up this system.  Be gentle with it and don't overfill the bellows.
  
 ==== Using the EDX system ==== ==== Using the EDX system ====