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| Instructions | Action Fields |
|---|---|
| Select Frequency Tune panel | Open embedded or start a script? |
| Select Chirp for RF mode. Set the drive level to 15% | script |
| Turn on the RF | script? |
| Open a striptool with the chirp detune and total steps | pushbutton or already have plot on the display |
| Record the cold landing frequency (the chirp detune) of the cavity in the elog | caget or a box showing the detune. Button to record value to a python variable for writing to CSV file. Button to stick in elog? |
| Open cavity overview waveforms display | button to open or already show the waveforms on display |
| Reset the total stepper motor steps | Show the total, provide the reset button |
| Set the stepper to 10000 steps (1E4). Click the right arrow. Verify that the detune amount moves toward zero. The calibration is approximately 10 Hz/step. If the detune increases, go 20000 steps with the left arrow and verify that the detune moves toward zero. If not, contact an expert. | |
| Move the stepper until the chirp detune is less than 5 Hz. Expect to move many millions of step.s Record the number of steps that is needed to get the cavity within 5 Hz detune. | Are we brave enough to have a script do this? |
| Set the piezo to enabled and dc mode | buttons or little script |
| Verify the piezo engagement by changing the DC offset voltage 5 volts and observing the cavity frequency changes by the expected amount (~100 Hz/volt) | Script that does this and calculates the hz/volt and shows that to the user. |
Cavity Calibration tab
| Instructions | Action Fields |
|---|---|
| Select Cavity Characterization EPICS display | Open embedded or start a script? |
| Set the cavity drive level to 15%. Set the cavity to pulse mode | The Q0 script already does this calibration - just needs to interact with the user a bit |
| Push the Pulsed SEL calibration GO button | provide button or script |
| Verify the waveforms for forward and reverse are similar to those below when the calibration is finished. If the Pulsed SEL Calibration successfully completes, the "newly calculated" values will appear in the results box. | Need the waveforms displayed on this page or window open from previous tab. Need a figure showing what waveforms should look like |
| Tweak the phase if the notch in the reverse power waveform doesn't touch the baseline | script snippet from q0 code |
| If the Q loaded is between 3e7 and 5e7, hit the "Push" buttons to push the loaded Q and the cavity scale factor to the Current value registers and push the "Save" buttons. If not, re-do the pulsed SEL calibration. If after the second try, the value is not within specification, note the value and move on to the next cavity. (Need sanity check on cavity scale factor too) | Prompt user to check, then script can push buttons. I think eventually we want the loaded Q in the CSV file. |
| Calculate the Probe Qext by pushing Go in the Probe Q calculator section. Log the Probe Q in the elog. | again with the enter value into python variable for later writing to CSV and elogging, whatever we decide |