Revision as of 09:09, 1 December 2022

Meetings are via ZoomGov: connect (Meeting ID: 160 199 0060 / Passcode 8394)

Thursday Dec. 1st

Wednesday started with production on empty target.
9:10am-11:30 Rapid access to change fadc for FCal and FDC, and fill the target.
Filled the target, from 10am-1pm. It took 3h to fill, and the first production runs are done while it was still filling.
Hall A re-started running at 17:48. A consequence is that the Hall D beam energy was quite instable from 6pm (Wed.) to 1am (Thursd.), with total drift of about 14 MeV.

The new FDC fadc is worst than the one replaced (Naomi/Lubomir). The problem is only for raw mode run.
Many cdc p_diff alarms (e.g. 0.8 alarm/hour during swing and owl shifts) leading to runs often shorter than 2h (this has already been discussed several time. This is just a report).

Hall C is expected to be back to running during swing shift today.
20 min test at low beam current/high Active Colim. gain to see if adjustment are needed (A. Somov)?
Last harp scan was done on Nov. 21st. Should we do a new one? (Transmission is fine.)
Luminosity study?

@@ Line 12: / Line 12: @@
 = Thursday Dec. 1st =
 === Last 24h ===
-*Wednesday started with production on Empty target.
+*Wednesday started with production on empty target.
 *9:10am-11:30 Rapid access to change fadc for [https://logbooks.jlab.org/entry/4093177 FCal] and [https://logbooks.jlab.org/entry/4093179 FDC], and fill the target.
 *[https://logbooks.jlab.org/entry/4093185 Filled the target, from 10am-1pm]. It took 3h to fill, and [https://logbooks.jlab.org/entry/4093220 the first production runs are done while it was still filling].