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19 changes: 12 additions & 7 deletions docs/guis/multiturn/excitation.md
Original file line number Diff line number Diff line change
Expand Up @@ -211,18 +211,22 @@ Always ask the experts on shift if unsure about the kick amplitudes to set.

Trigger an acquisition by clicking the yellow ++"Acquire with ACDipole excitation"++ button at the bottom left of the GUI.
The AC Dipole will arm, then kick the beam.
Make sure to have a `BLM Display` application open and to monitor the losses during that time.

Afterwards, a new tab will open at the very top of the GUI to display the BPM measurements, which can be checked: a menu list lets one select any BPM from each beam, and view the recorded bunch centroid turn-by-turn data through the acquisition.
!!! tip "Watch for Losses on Kicks"
Make sure to have a `BLM Fixed Display` application open and to monitor the losses right after clicking to acquire, and watch out for large losses and spikes close to thresholds.
This is especially important to do when increasing the kick amplitude btween kicks.

??? info "Losses on Kicks"
Sometimes when increasing the kick amplitude, one will notice large losses.
In this case it is recommended to kick a couple times at this amplitude or just below to see if the losses reduce or are consistent.
<!-- TODO: insert a picture of the BLM display? -->

Should they reduce the beam might have just needed cleaning and one can increase the kick amplitude further.
Otherwise, stop increasing unless a beam dump is affordable.
In case large losses are observed, it is recommended to kick a couple times at the current amplitude or just below to see if the losses reduce or are consistent.
While doing so, also keep an eye on the beam intensity as can be seen on the vistars.

Should losses reduce, the beam might have just needed cleaning and one can increase the kick amplitude further.
Otherwise stop increasing unless a beam dump is affordable (hint: it **rarely** is).
Refer to the experts on shift if unsure about the losses, and whether the kick amplitude can be increased further.

After the kick is done, a new tab will open at the very top of the GUI to display the BPM measurements, which can be checked: a menu list lets one select any BPM from each beam, and view the recorded bunch centroid turn-by-turn data through the acquisition.

!!! danger "Do not Kick Both Beams Simultaneously"

Firstly, kicking both beams simultaneously might exceed the losses threshold and lead to a beam dump.
Expand Down Expand Up @@ -250,6 +254,7 @@ This deficit can be overcome in improving the signal-to-noise ratio through incr
Refer to the [AC Dipole Excitation](#ac-dipole-excitation) section above for the settings and steps.

Trigger an acquisition by clicking the yellow ++"Acquire with ADT/AC excitation"++ button at the bottom left of the GUI.
Just as with the AC Dipole, make sure to keep an eye on the losses (via the `BLM Fixed Display` and beam intensities) during the acquisition.

*[AC Dipole]: Alternating Current Dipole
*[ADT]: LHC Transverse Damper
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2 changes: 1 addition & 1 deletion docs/measurements/procedures/general_checks.md
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Expand Up @@ -72,7 +72,7 @@ Here are some general checks on should always keep in mind when performing measu
</p></details>

- [ ] <details class="nodeco"><summary>Have the Losses Applications Open</summary>
<p> When kicking from Multiturn, keep an eye on the losses application for unexpected spikes.
<p> When kicking from Multiturn, keep an eye on the losses application (`BLM Fixed Display`) for unexpected spikes.
</p></details>

- [ ] <details class="nodeco"><summary>Make Sure to Log All Info</summary>
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