Some notes on aligning the laser through the beam transport.
Will add pictures and clearer descriptions in a bit. This is just based on some quick notes I made when Henrik showed me the ropes.
Claudio's code might take care of the alignment soon, so this might become less useful in the future.
Update Nov 2021: Most of the alignment is now indeed automated and can be controlled using Claudio's GUI. Screenshots and instructions to follow once details are ironed out.
HeNe: Automated alignment procedure (GUI)
Go to facet home → Matlab GUIs → S20 Laser Tools → S20 Laser Auto Alignment
The GUI looks like this:
Press 'Stop Alignment' (red button). This will stop any scripts running on other machines.
Then tick boxes for
HeNe: Manual alignment procedure
- Find reference numbers in e-log: search 'alignment' and find a table with pixel coordinates, cameras, motors etc.
It looks like this:
Note the coordinates are for NEGATIVE, NEGATIVE which indicates the direction of the axes.
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IR: Manual alignment procedure
Now after aligning the HeNe, we can proceed with using the IR laser and overlapping its beam path with the HeNe.
- Check references on DMNear and Far
- Block HeNe in laser room (this is now motorised):
The motor can be found at facet home → Laser → LI20 → Infrastructure → Controllers (mid column): XPS MOC-LA20-LS24 → Ch3
IN is at 10, OUT is at 8. (Did IN mean block in, so no HeNe?)
- Close Iris near the DM to 'Align' (will be motorised soon)
- Now someone has to bring on the laser in the tunnel
- Open shutter on Laser → LI20→ Laser and then the shutter next to LSS EPS EPICS from High to Low
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