Difference between revisions of "UITF Notes"

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(Created page with "== Opportunistic tests and long-term ideas off the top of my head == * Make sure we know which peak is which in the harp scans (make beam spot asymmetric and compare with vie...")
 
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** maybe also an EPICS-switchable DC voltage for the auxiliary laser diode (replaces manual "beam shutter")?
 
** maybe also an EPICS-switchable DC voltage for the auxiliary laser diode (replaces manual "beam shutter")?
 
** have a second PS for the dispenser; could be remote-controlled or not, don't really care... we can't automate the whole process anyway because of the manual valve
 
** have a second PS for the dispenser; could be remote-controlled or not, don't really care... we can't automate the whole process anyway because of the manual valve
 +
* Can we get decent, auto-aligning corrector mounts throughout the machine? The multipole moments are currently uncontrollable, presumably large, which is a bigger deal than one might think because the beam line alignment also looks terrible.
  
 
== Preparation for HKDL ==
 
== Preparation for HKDL ==

Revision as of 18:41, 3 September 2021

Opportunistic tests and long-term ideas off the top of my head

  • Make sure we know which peak is which in the harp scans (make beam spot asymmetric and compare with viewer).
  • Readjust buncher amplitude by minimizing p spread on 703?
  • Measure p spread on 703
  • Float gun-energy beam to 703 to verify MDLM601 calibration. Not sure if possible, but worth trying. Detune both cavities, use BPMs liberally.
  • Have the intermittent RF instabilities fixed
  • Measure how much juice the BPMs need for reliable positions, particularly in the keV region
  • Is there anything we can learn from the BPMs / correctors to supplement the gun kick study at CEBAF?
  • Implement QE tool per Joe's request. Got shopping list from Michele
  • It would be nice to have an extra corrector before the booster to get a nicer axis through both cavities. Prefer the duct-tape variety to nothing at all
  • Permanently incorporate prep chamber stuff into EPICS
    • stalk heater PS, temperature readback, ion pump current, anode current. Consider protection logic to disable heater if pressure or temp gets too high. Add oven timer. It should automagically post a completion notice to UITFLOG.
    • maybe also an EPICS-switchable DC voltage for the auxiliary laser diode (replaces manual "beam shutter")?
    • have a second PS for the dispenser; could be remote-controlled or not, don't really care... we can't automate the whole process anyway because of the manual valve
  • Can we get decent, auto-aligning corrector mounts throughout the machine? The multipole moments are currently uncontrollable, presumably large, which is a bigger deal than one might think because the beam line alignment also looks terrible.

Preparation for HKDL

  • The keV emittance can be measured at 501 provided intrinsic energy spread is negligible (buncher off).
  • qsUtility lacks harps to directly measure the optical functions prior to M601, especially directly before and after the booster. Need to measure them at M601 for a few suitable beam energies and backpropagate to M401 in preparation for simulations of the HKDL optics.