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| 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 |
Ramp-up Cavity in Pulsed tab
If previous "tab" is just a script, maybe make it be just a few steps on this tab.
| Instructions | Action Fields |
|---|---|
| Go to Pulsed LLRF display | Open embedded or start a script? |
| Set the drive level to 15% and RF On Time to 70 ms. Push "Go." Waveforms will appear and display the calculated cavity voltage based on the Loaded Q calculated above. | |
| Verify the radiation monitor is logging for the cavity. | |
| Slowly increase the Drive Level in 5% steps manually (clicking "Go" after each change) until the cavity amplitude reaches AUSE_SRF or the radiation level exceeds 50 MR/hr (0.5 mSv/hr) | |
| Record the maximum Drive Level used | Push button to store in python variable. |