Synoptic

../../_images/synoptic_1.png

How to start it:

  • Icon on desktop

  • In menubar: “MAXIV”: “MAXIV Veritas synoptic”

  • Run in terminal “ctveritassynoptic”

What does it do?

The Synoptic gives a graphical representation of the beamline and spectrometer. Here you can check pressures, open valves, and open to the frontend.

Check if there is beam

  • Right click on the camera icon over the exit slit and a window will open (see figure with and without beam).

../../_images/beam_nobeam.jpg

  • Start the camera acquisition and if the beam is still not there check if the front end (FE) is closed or if there is a beam dump.

  • If the FE shutters are closed (white) open them following a strict sequence, starting from downstream all the way to the Heat absorber. Prior to opening, check if there is current in the 3 GeV ring (approx. 400 mA). Open “Safety Shutter” first, followed by “VGMB02”, and in the end, when their colors change to green, open “Heat absorber” (see figure below).

../../_images/front_end.jpg

NOTE: if at any point you feel uncomfortable to open any valves / shutter, please feel free to contact the floor coordinator (+46 (0)46 222 16 61 / +46 73 597 3055) or the beamline local contact.

When do I need to use it

  • During sample transfer

  • Opening the FE after a beam dump

  • Troubleshooting a “Why is there no beam?”-scenario