[BTeam] Meeting today, Yes.

[Brian Freeman]

All,
Yves will be out today and has asked me to lead the meeting today. Here is a quick status and possible discussion points. Hopefully it will be a quick meeting.

Injector:

  1.  Injector set-up ongoing. We will be sending beam to the ILD later, and reducing the sensitivity of the BLMs 0R09 and 0R08 to bump up the current to the ILD.
  2.  Discussion ongoing about charging viewer. We may try a PID lock of some kind to lock the front end positions.
  3.  Once we get higher current, PQB will still need to check beam to the ILD.
  4.  Match was done in 6 MeV region and 0L region. https://logbooks.jlab.org/entry/373845<https://logbooks.jlab.org/entry/3738453>

Machine:

  1.  RF that still needs work: 1L26, 1L07, 1L13.
  2.  Cryo found today that RT valves for the C100s are all looking like seals have disintegrated. Jonathan Creel will speak to this in tomorrows 8AM meeting.
  3.  HCO nearing completion

We are still pushing to beam able to send beam to 1R Thursday. Open questions for this meeting:

  1.  Hall A will not be ready for beam until after the 14th, so we are unable to do cross calibration Arc1/ Arc2/ Hall A Dipole strings.
     *    Do we still do Arc 1 and Arc 2 and wait for Hall A 1st for spin dance to get Hall A Energy measurement.
     *    Do we spin up 5 pass beam -> Hall A 5th pass RF stress test -> drop back to 1st pass to hall A for spin dance and Dipole calibration?
  2.  Yves said he thinks that dipole field maps have already been updated. Is this true?
  3.  What else am I missing?

Thanks,
-Brian
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