- Went up to 100kV in the cavity once it was tuned.
- Achieved nice storage stable for 2500 turns and some beam for > 100ms
- Measured the tune: several peaks around 0.35[1] (near the expected value) and one peak not understood at 0.5
- We observed storage at different frequencies spaced by about 10kHz
- Shall we try to return close from the nominal frequency?
Current status wrt to X-ray search:
- First we need to be able to reach reproducable storage from day to day
- X-ray searches can be started parasitically when the beam is stored
- Better understanding of the beam will come through measurements (at least until the summer): precise measurements of optics, beam parameters will be possible only with repeatable operations. This is crucial to reach the target parameters of the ring.
Next steps:
- This week (Friday afternoon - if beam available): try to reproduce results from last Friday; store, study injection, dispersion
- Next week: Thursday continue work on reproducibility; Friday 31st: scan in frequency starting from nominal frequency at lower voltage. |