Presentation is loading. Please wait.

Presentation is loading. Please wait.

00:15: Stable beams fill 1883, 1.1E33 cm-2s-1.  Seems the 144 bunches beam 1 doe not fit properly on the injection kicker waveform. Systematically the.

Published byPhebe Floyd Modified over 9 years ago

Similar presentations

Presentation on theme: "00:15: Stable beams fill 1883, 1.1E33 cm-2s-1.  Seems the 144 bunches beam 1 doe not fit properly on the injection kicker waveform. Systematically the."— Presentation transcript:

1 00:15: Stable beams fill 1883, 1.1E33 cm-2s-1.  Seems the 144 bunches beam 1 doe not fit properly on the injection kicker waveform. Systematically the last 5 bunches are kicked.  Kicklength for beam 1 shorter than for beam 2: beam 1: 7.85 us beam 2: 8.1 us.  Injection kicker pulse length increased by 200 ns on B1. Operational limits in injection kicker app updated accordingly. IQC limits also adjusted.  Updated the operational limits for the MKIs...these were still rather relaxed. 18:15: fill #1883 dumped by SIS interlock (OFSU down)  47.5 pb-1 in around 18 hours. Refill delayed due to RF problems (noise) in the SPS. Tuesday June 21 st 22-06-2011 LHC morning report

2 Long fill #1883 after 15h in stable beams 22-06-2011 LHC morning report

3 47.7/46.3 pb-1 collected 22-06-2011 LHC morning report

4 18:44 Summary of BLM intervention:  Configuration for Mobile monitors have been deployed in LSA. We need to restart the concetrator in order to pickup the new configuration.  Restarted the LHC-BLMS-ACQ-MEAS.jvm @ COLSA  Restarted the LHC-BLMS-ACQ.jvm @ COLSA3  Result: The 6 new monitors appear in the display. the 2 of them which have been already connected show a signal.  Note: the remaining 4 channels need still configuration in the processing electronics and (probably) access. to be done at a later time. QHPS is discharging in S12 (cell 23.L2).  Masked the SW interlock "RB_A12_QPS_OK" because one of the quench heaters on MB.A23L2 is discharged. Tuesday June 21 st 22-06-2011 LHC morning report

5 01h30: Pilot bunches from SPS  stopped due to a number of things: bad beam quality in the SPS, Persistent BPM LSS4(new) interlock, crash of BIC cfv-ba4-cibtt40 When injecting beam:  the injection oscillations on the horizontal plane for both B1 and B2 were very large (~4mm) and not realistically correctable.  The horizontal emittances were bimodal and very large... something was kicking the beam in the horizontal plane.  Suspect that there is still a problem with the RF synchronisation & rephasing between SPS and LHC. (Note that CNGS worked well over night, so for us this rules out beam position at extraction.) Beam dump at 07:45 (if at 3.5 TeV). Machine on standby at 08:30 at the latest - until 12:30. No access. Wednesday June 22 nd 22-06-2011 LHC morning report

6 Injection Oscillations 22-06-2011 LHC morning report

7 Distribution 22-06-2011 LHC morning report

8 Screen 22-06-2011 LHC morning report

9 12:30: Restart the accelerators. Check injection kicker pulse. Collimation loss maps (450 GeV, 3.5 TeV): ran out of 4 week qualification interval. Next intensity step: 1092b  1236b Ahead 22-06-2011 LHC morning report

Download ppt "00:15: Stable beams fill 1883, 1.1E33 cm-2s-1.  Seems the 144 bunches beam 1 doe not fit properly on the injection kicker waveform. Systematically the."

Similar presentations

8:16 SB 25ns dumped by RF; integrated lumi 0.6 nb-1. 9:14 BIC problem in TI8 and CMS recovering their tracker 10:09 Abort gap cleaning commissioning. 16:29.

8:16 SB 25ns dumped by RF; integrated lumi 0.6 nb-1. 9:14 BIC problem in TI8 and CMS recovering their tracker 10:09 Abort gap cleaning commissioning. 16:29.
Beam commissioning strategy 09-12-09 Global machine checkout Essential 450 GeV commissioning System/beam commissioning Machine protection commissioning.

Beam commissioning strategy Global machine checkout Essential 450 GeV commissioning System/beam commissioning Machine protection commissioning.
Wednesday 12 th September Pumping, removal of vacuum equipment from tunnel in the morning TOTEM & ALFA, RP movement tests: OK 11:50 pre-cycle started,

Wednesday 12 th September Pumping, removal of vacuum equipment from tunnel in the morning TOTEM & ALFA, RP movement tests: OK 11:50 pre-cycle started,
LHC 30 th and 31 st July 2015 07:10 Finish scrubbing fill 25 ns trains by operator dump. –No XPOC data … 08:40 Inject for another scrubbing fill 09:09.

LHC 30 th and 31 st July :10 Finish scrubbing fill 25 ns trains by operator dump. –No XPOC data … 08:40 Inject for another scrubbing fill 09:09.
Weekly summary Summary Week 28 -12.07/19.07 M. Lamont & J. Wenninger for the OP team and for all colleagues from the various groups 8:30 meeting 1.

Weekly summary Summary Week /19.07 M. Lamont & J. Wenninger for the OP team and for all colleagues from the various groups 8:30 meeting 1.
LHC 23 June 2015 08:07: Started injection cleaning with B1. 08:13: Fault on MKI B2. –MKI Beam 2 in P8 had a breakdown at 07:49 during the SoftStart process.

LHC 23 June :07: Started injection cleaning with B1. 08:13: Fault on MKI B2. –MKI Beam 2 in P8 had a breakdown at 07:49 during the SoftStart process.
Monday 21.3. 06h00: End of fill #1640: 3.7 pb -1. 06h14: RB S12 and S23 tripped before loading rampdown table, active filter. MPE piquet. Fip_Com_Lost.

Monday h00: End of fill #1640: 3.7 pb h14: RB S12 and S23 tripped before loading rampdown table, active filter. MPE piquet. Fip_Com_Lost.
LHC Status Mo Morning 20-June Bernhard Holzer, Gianluigi Arduini et al 7 runs The Week.

LHC Status Mo Morning 20-June Bernhard Holzer, Gianluigi Arduini et al 7 runs The Week.
LHC Beam Operation Comitte24. April 20111 INJECTION AND TRANSFER LINE STABILITY L.Drøsdal For the injection team.

LHC Beam Operation Comitte24. April INJECTION AND TRANSFER LINE STABILITY L.Drøsdal For the injection team.
Tuesday 17 th April 04:00 Prepare second fill for v/d Meer scans. 06:22 Stable beams, v/d Meer scans for Alice and LHCb. 13:20 End v/d Meer scans.Dump.

Tuesday 17 th April 04:00 Prepare second fill for v/d Meer scans. 06:22 Stable beams, v/d Meer scans for Alice and LHCb. 13:20 End v/d Meer scans.Dump.
2011-11-25 LHC 8:30 meetingEBH 11 Thursday 24 November 2011.

LHC 8:30 meetingEBH 11 Thursday 24 November 2011.
● Main goals for week 33: – Luminosity production; – First 150 ns bunch train attempts; – Roman Pots: check movement at 3.5 TeV, with 1b; – Off momentum.

● Main goals for week 33: – Luminosity production; – First 150 ns bunch train attempts; – Roman Pots: check movement at 3.5 TeV, with 1b; – Off momentum.
Monday 11.04 07h34: beam (1020b) lost after 10 Hz RF trim. Fill 1694. 07h56: XPOC to be reset by expert. 08h18: Masked QPS_STATE SIS interlocks for RB.A12.

Monday h34: beam (1020b) lost after 10 Hz RF trim. Fill h56: XPOC to be reset by expert. 08h18: Masked QPS_STATE SIS interlocks for RB.A12.
● 08h00: Adjust mode for end-of-fill study. Scraping test for determining transverse beam profile (beam 2, vertical). As expected, beam dumped with BLM.

● 08h00: Adjust mode for end-of-fill study. Scraping test for determining transverse beam profile (beam 2, vertical). As expected, beam dumped with BLM.
Monday 30.05. 01:00 Injection for physics fill #1816 02:00 Stable beams fill #1816, luminosity ~1.2x1033 cm-2s-1 11:08 Beams dumped. QPS trigger on detector.

Monday :00 Injection for physics fill # :00 Stable beams fill #1816, luminosity ~1.2x1033 cm-2s-1 11:08 Beams dumped. QPS trigger on detector.
09:25 Operator dump fill #2178, integrated lumi 107/108/18 nb-1. Trip of RQ4.R6 (fire heaters discharged) just after the beam dump but the QPS gave no.

09:25 Operator dump fill #2178, integrated lumi 107/108/18 nb-1. Trip of RQ4.R6 (fire heaters discharged) just after the beam dump but the QPS gave no.
08h15: Injection.  Correction injection oscillations.  Transfer line steering.  Losses at 30% of dump threshold, limited by SPS scraping. 12h35: Start.

08h15: Injection.  Correction injection oscillations.  Transfer line steering.  Losses at 30% of dump threshold, limited by SPS scraping. 12h35: Start.
LHC Injection Sequencing MD 16/23/2009 Injection sequencing / BCM R, Giachino, B. Goddard, (D. Jacquet), V. Kain, M. Meddahi, J. Wenninger.

LHC Injection Sequencing MD 16/23/2009 Injection sequencing / BCM R, Giachino, B. Goddard, (D. Jacquet), V. Kain, M. Meddahi, J. Wenninger.
08:30 Machines in stand-by 12:30 Access in LHC for QPS and PC:  QPS quench heater power supply RB.A12  EPC for RSF2.A67B2 and RQ9.R8B1.  RCBH27.L1B2.

08:30 Machines in stand-by 12:30 Access in LHC for QPS and PC:  QPS quench heater power supply RB.A12  EPC for RSF2.A67B2 and RQ9.R8B1.  RCBH27.L1B2.
Tuesday 24 th July - morning 10:15 Operator dump of fill 2873  Initial luminosity: 5.83e33 cm-2s-1  12 hours stable beams  151 pb-1 delivered  Initial.

Tuesday 24 th July - morning 10:15 Operator dump of fill 2873  Initial luminosity: 5.83e33 cm-2s-1  12 hours stable beams  151 pb-1 delivered  Initial.

Similar presentations

Ads by Google