# Synoptic
```{figure} img/synoptic_1.png
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**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).

```{figure} img/beam_nobeam.jpg
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* 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).

```{figure} img/front_end.jpg
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**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