Difference between revisions of "Run Meeting: March 4th, 2019"
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- Roman: need access to Hall A tomorrow to reboot Moller DAQ crate (~10 min) and to check Left HRS VDC realy box (1-2 hours). <br /> | - Roman: need access to Hall A tomorrow to reboot Moller DAQ crate (~10 min) and to check Left HRS VDC realy box (1-2 hours). <br /> | ||
- Doug will be available to provide the Hall walk-through training tomorrow. | - Doug will be available to provide the Hall walk-through training tomorrow. | ||
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| + | Labyrinth network switches? Now or after APEX? | ||
==Slides/Links== | ==Slides/Links== | ||
Revision as of 15:31, 4 March 2019
Back to:
3:30PM Run Meeting, Counting house meeting room (200C)
RC: Jinlong Zhang
Contents
Status
Beam down from Friday night to Saturday later afternoon
Friday ~22:00: Beam down due to the cavity/vacuum (1L25-8/1L26) issue at north linac;
Saturday 18:00: Beam restored;
18:00-19:00: escorted access for VDC Left U2 cable checking );
Back to production.
Productively collecting data over after the downtime.
Yesterday ~21:53: Bogdan increased the HV for Left VDC, from -3500 to -3600. Efficiency improved.
Earlier this morning ~6:00: CODA stopped working, from run 4585. Fixed by Alex. https://logbooks.jlab.org/entry/3662865
Charge from Sat 19:30 to Today 6:00: 2.3A
Beam study this morning. We were taking production data during that.
Links to the shift summaries:
Mar 1 Swing: https://logbooks.jlab.org/entry/3661962
Mar 2 Owl: https://logbooks.jlab.org/entry/3662024
Mar 2 Day: https://logbooks.jlab.org/entry/3662128
Mar 2 Swing: https://logbooks.jlab.org/entry/3662283
Mar 3 Owl: https://logbooks.jlab.org/entry/3662400
Mar 3 Day: https://logbooks.jlab.org/entry/3662530
Mar 3 Swing: https://logbooks.jlab.org/entry/3662666
Mar 4 Owl: https://logbooks.jlab.org/entry/3662809
So Far
Taking production data, Tungsten 2.8% @30uA.
Plan
Continue with production on tungsten until tomorrow ~8:30.
Beam energy reduction: from 2.221 GeV to 2.139 GeV (~4%):
The change with take place tomorrow and is expected to be completed during tomorrow swing.
Kinematic setting will be accordingly changed.
The RF recovery was planned from 8:30 to15:00 tomorrow. This will be covered by the energy reduction setup.
The Hall will be in controlled access for tomorrow day shift.
- Switch the right arm polarity, from positive to negative, for the optics data.
- Roman: need access to Hall A tomorrow to reboot Moller DAQ crate (~10 min) and to check Left HRS VDC realy box (1-2 hours).
- Doug will be available to provide the Hall walk-through training tomorrow.
Labyrinth network switches? Now or after APEX?
Slides/Links
MCC scheduling Whiteboard: http://accboard.acc.jlab.org/
APEX wiki page: https://hallaweb.jlab.org/wiki/index.php/APEX
Bluejeans connection information
To join the Meeting: https://bluejeans.com/256205934
To join via Room System: Video Conferencing System: bjn.vc -or-199.48.152.152 Meeting ID : 256205934
To join via phone : 1) Dial:
+1.408.740.7256 (United States) +1.888.240.2560 (US Toll Free) +1.408.317.9253 (Alternate number) (see all numbers - http://bluejeans.com/numbers)
2) Enter Conference ID : 256205934
Slides/Links
MCC scheduling Whiteboard: http://accboard.acc.jlab.org/
APEX wiki page: https://hallaweb.jlab.org/wiki/index.php/APEX
Bluejeans connection information
To join the Meeting: https://bluejeans.com/256205934
To join via Room System: Video Conferencing System: bjn.vc -or-199.48.152.152 Meeting ID : 256205934
To join via phone : 1) Dial:
+1.408.740.7256 (United States) +1.888.240.2560 (US Toll Free) +1.408.317.9253 (Alternate number) (see all numbers - http://bluejeans.com/numbers)
2) Enter Conference ID : 256205934
