LHCb Daily Report, Monday 26 June 2017, 10:30

Shift Leader Data Manager GEOC
Yesterday morning Manuel Schiller Maciej Pawel Szymanski Mark William Slater
Yesterday afternoon Sergey Barsuk Pei-Rong Li
Yesterday night Federico Alessio Qingnian Xu
Today morning Antonino Sergi Maciej Pawel Szymanski Zoltan Mathe
Today afternoon Sergey Barsuk Pei-Rong Li
Today night Lucia Grillo Qingnian Xu

Luminosity and inefficiencies

Fill Delivered Logged Inefficiency HV off Velo not IN DAQ not running Dead time
5872 22676.983 nb-1 21067.740 nb-1 7.10 % 0.01 % 0.10 % 1.33 % 5.74 %
5873 11357.695 nb-1 10549.781 nb-1 7.11 % 0.02 % 0.26 % 1.10 % 5.82 %
Total 0.000 nb-1 0.000 nb-1 0.00 % 0.00 % 0.00 % 0.00 % 0.00 %

Latest events

Shift Summary entries in the logbook

25 June 14:31 Manuel Schiller LHC: machine filled the ring early in the morning, stable beams since then

LHCb:
- taking data since early morning; no problems

To be done:
- keep an eye on deadtime at start of fill. If deadtime too high, call HLT piquet.
- also, in case they change the number of bunches (to increase), call HLT piquet.
25 June 22:25 Sergey Barsuk LHC:
fill 5872, in stable beams throughout the shift.

LHCb:
- smooth operation, recorded 17 pb-1 since the beginning of the fill with 93% efficiency;
- autopilot successfully handles almost all the problems (RICH HPDs, Tell1 resets etc.);
- at the beginning of the fill TMU Tell1 errors, cured with the help of Olivier D.;
- warnings on VELO HV current almost all the time present on the alarm screen;
- several times non-empty error banks of OT FE.

To be done (copy from the summary of the previous shift):
- keep an eye on deadtime at start of fill. If deadtime too high, call HLT piquet.
- also, in case they change the number of bunches (to increase), call HLT piquet.
26 June 05:48 Federico Alessio LHC: End of fill 5872 around midnight, then ~2h of interfill and physics again in fill 5873. Possibly during the
day the LHC will change the Abort Gap Keeper length and that would allow to inject another train of 144bunches
(probably the last step in the intensity ramp-up).

LHCb:
- well efficient data taking (~93% as in the previous fill). Flying fast towards 200/pb.
- warnings on VELO HV current almost all the time present on the alarm screen.
- few automatic resets and L0FE resets handled by the AutoPilot due to OT, RICH, VELO and L0MUON.
- towards the end of the shift, the Adder for HLTD04 is greyed out, not ready and unresponsive. After few minutes, an
alarm showed up saying HLTD04 system disconnected. Excluded for the moment, to call Online piquet to reboot it at a more
decent hour. Currently not impact on deadtime.
- automatic printing of shifters/piquet does not work anymore.

To be done (current plan):
- keep an eye on deadtime at start of fill. If deadtime too high, call HLT piquet.
- also, in case they change the number of bunches (to increase), call HLT piquet.
- fix automatic printing of shifters/piquet list.

Run Chief : Patrick Robbe and Federico Alessio

VELO Piquet : William James Barter

Name Report
26 Jun 09:12:28 William Barter The condensor output alarm has returned (absent over weekend) - will watch for problems.

Nothing else to report.

ST Piquet : Andrea Merli

Name Report
25 June 12:57 Andrea Merli Nothing to report

OT Piquet :

Name Report
26 June 09:28 Greg Ciezarek All ok

RICH Piquet : Konstantin Gizdov

Name Report
26 June 09:28 Konstantin Gizdov Nothing to report

Calo Piquet : Olivier Deschamps

Muon Piquet : Marco Santimaria

Name Report
26 June 08:51 Marco Santimaria ntr

HERSCHEL Piquet : Maciej Witold Majewski

Name Report
26 June 07:41 Maciej Witold Majewski All ok

L0 Piquet : Olivier Deschamps

HLT Piquet : Miguel Ramos Pernas

Name Report
26 June 09:14 Miguel Ramos Pernas Nothing to report
HLT1 disk occupancy HLT2 output rate

Alignment Piquet : Francesca Dordei

Name Report
26 June 09:32 Francesca Dordei All OK, nothing to report.

Online Piquet : Luis Granado Cardoso

Data Quality Piquet : Stefania Vecchi

Production :