Presentation is loading. Please wait.

Presentation is loading. Please wait.

Friday to Saturday 02:00: Machine closed. 09:00: Cryogenics all OK. Preparing pre-cycle. 10:00: Pre-cycle started. 11:30: Pre-cycle finished. 14:00: Beam.

Published byGrace Chambers Modified over 9 years ago

Similar presentations

Presentation on theme: "Friday to Saturday 02:00: Machine closed. 09:00: Cryogenics all OK. Preparing pre-cycle. 10:00: Pre-cycle started. 11:30: Pre-cycle finished. 14:00: Beam."— Presentation transcript:

1 Friday to Saturday 02:00: Machine closed. 09:00: Cryogenics all OK. Preparing pre-cycle. 10:00: Pre-cycle started. 11:30: Pre-cycle finished. 14:00: Beam back. Orbit corrections, injection check, tune adjustments. 15:00: PIC on 60A power converters. 16:00: Beam back. Chromaticity adjustments. Beta beat. Orbit feedback tests. LSA bugs. 21:00: Start of ramp with beam to 1.18 TeV. Arrive very nicely at top at 21:11. Availability (to 21:00): 11h00. Unplanned maintenance: 1h00. Planned maintenance: 9h00

2 Saturday TOTEM test finished very successfully!  All case studies were tested and the interlock logic is OK for all of them.  Results of tests documented online with snapshots. All cases associated to beam dumps are also documented by global PM events Philippe who finished the RF adjustments in SR4:  The Front-End of the phase loop has been adjusted to prepare for bunch intensity increase.  Both rings can now take at least 5E10 single bunch. Exactly what intensity limit will be clarified on Monday...Hopefully up to nominal.  With these settings we can still deal with single-bunch pilot 5E9 OK. However how far below 5E9 will be clarified on Monday. LHC status 9-3-10

3 Summary of aperture measurements. We could complete the phase space coverage for both H and V planes of beam 1. Work was done in parallel with RF tuning in preparation for higher intensities ("cross talk" not always transparent...).  Measurements were done with orbit bumps at different phases. Loss location are listed in detail in the logbook for the different cases.  Reference machine: golden orbit used for collimator setup, separation bumps on in all IPs.  No indication of major problems with the aperture. Measurements with golden orbit and with corrected beta-beat indicate a better aperture than last year. Detailed look at the data is needed to take into account the measured beta values. Main aperture bottlenecks: Q4 quadrupoles in IP6, Q6- L2 and Q6-R2. Complete list in logbook LHC status 9-3-10

4 ramp LHC status 9-3-10

5 Schedule LHC status 9-3-10 5 e10

Download ppt "Friday to Saturday 02:00: Machine closed. 09:00: Cryogenics all OK. Preparing pre-cycle. 10:00: Pre-cycle started. 11:30: Pre-cycle finished. 14:00: Beam."

Similar presentations

DS Quench TEST 2  MOTIVATION and METHOD: 1. Achieve 500kW on beam 1 – TCP7 collimators.(so far 500kW with beam 2 and 235kW over 1s with beam 1 were reached.

DS Quench TEST 2  MOTIVATION and METHOD: 1. Achieve 500kW on beam 1 – TCP7 collimators.(so far 500kW with beam 2 and 235kW over 1s with beam 1 were reached.
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.
LHC progress week 19 Monday 11 th May 2015 Coordination: Jan Uythoven, Massimo Giavannozzi, Mike Lamont.

LHC progress week 19 Monday 11 th May 2015 Coordination: Jan Uythoven, Massimo Giavannozzi, Mike Lamont.
LHC 18 & 19 April 2015 At 450 GeV with bumps, no increased MUFO activity. Beam screen 15R8 warming up to 80 K, ongoing for the day 09:00: Orbit studies.

LHC 18 & 19 April 2015 At 450 GeV with bumps, no increased MUFO activity. Beam screen 15R8 warming up to 80 K, ongoing for the day 09:00: Orbit studies.
Day 26.3. ● 09:00-14:00: Collimation setup 3.5 TeV – Slowed down by losses induced by tune hump. – 48 collimators set up. – Beam dumped by ATLAS during.

Day ● 09:00-14:00: Collimation setup 3.5 TeV – Slowed down by losses induced by tune hump. – 48 collimators set up. – Beam dumped by ATLAS during.
RF de-bunching problem  The Beam Phase module measures the phase of each individual bunch and makes an average that is passed to the Low Level for updating.

RF de-bunching problem  The Beam Phase module measures the phase of each individual bunch and makes an average that is passed to the Low Level for updating.
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,
The ATS MD part III (Achromatic Telescopic Squeezing scheme) Participants: Any (active) volunteers Goal: 1)MD1 (S. Fartoukh & R. Assmann  10h): “Pre-squeeze’’

The ATS MD part III (Achromatic Telescopic Squeezing scheme) Participants: Any (active) volunteers Goal: 1)MD1 (S. Fartoukh & R. Assmann  10h): “Pre-squeeze’’
LHC progress with beam & plans. Of note since last time Transverse damper Beta beating in the ramp Collimation set-up at 450 GeV & validation LBDS – systematic.

LHC progress with beam & plans. Of note since last time Transverse damper Beta beating in the ramp Collimation set-up at 450 GeV & validation LBDS – systematic.
02/09/2010 Access conditions for test of the RB.A23 at 17:30. Splice mapping. Complete machine closed by ~18:00.Problems in getting TI2 ready for injection.

02/09/2010 Access conditions for test of the RB.A23 at 17:30. Splice mapping. Complete machine closed by ~18:00.Problems in getting TI2 ready for injection.
Saturday 6:13 – 15:00 STABLE BEAMS  scans etc. 15:00 moved to ADJUST Squeeze to 2 m in two steps 11 – 5 – 2  remarkably smooth  tertiary collimators.

Saturday 6:13 – 15:00 STABLE BEAMS  scans etc. 15:00 moved to ADJUST Squeeze to 2 m in two steps 11 – 5 – 2  remarkably smooth  tertiary collimators.
● 08:30 Loaded by mistake squeeze function to 2 m  Dumped beams ● 10:30-13:00 Test of new algorithm for long. Emittance blow-up to minimize oscillations.

● 08:30 Loaded by mistake squeeze function to 2 m  Dumped beams ● 10:30-13:00 Test of new algorithm for long. Emittance blow-up to minimize oscillations.
Beam expected in the afternoon PM: – Establish first-turn – Establish closed orbit – Rough correction of machine parameters Evening: – RF capture Night:

Beam expected in the afternoon PM: – Establish first-turn – Establish closed orbit – Rough correction of machine parameters Evening: – RF capture Night:
Plan for start-up with beam Friday  19:00 Machine closed. Ramp for powering tests & pre-cycle  22:00 Pilots through nominal cycle up to collisions. Measure.

Plan for start-up with beam Friday  19:00 Machine closed. Ramp for powering tests & pre-cycle  22:00 Pilots through nominal cycle up to collisions. Measure.
ION COMMISSIONING REVISITED 1 Thanks to: John Jowett, Walter Venturini. Matteo Solfaroli.

ION COMMISSIONING REVISITED 1 Thanks to: John Jowett, Walter Venturini. Matteo Solfaroli.
13-12-09 -09:00: Prepared new fill B1: Q X =0.293, Q Y =0.269; lifetime = 25h ✔ B2: Q X =0.297, Q Y =0.267; lifetime = 5h ✗ Strong 50Hz and 100hz lines.

:00: Prepared new fill B1: Q X =0.293, Q Y =0.269; lifetime = 25h ✔ B2: Q X =0.297, Q Y =0.267; lifetime = 5h ✗ Strong 50Hz and 100hz lines.
Friday March 4 th 01-03-2011 LHC morning report the short story: from a global point of view...... we had basically only one access !!!

Friday March 4 th LHC morning report the short story: from a global point of view we had basically only one access !!!
R. Assmann - LHCCWG Two Beam Operation R.W. Aßmann LHCCWG 8.5.2007 Acknowledgements to W. Herr, V. Previtali, A. Butterworth, P. Baudrenghien, J. Uythoven,

R. Assmann - LHCCWG Two Beam Operation R.W. Aßmann LHCCWG Acknowledgements to W. Herr, V. Previtali, A. Butterworth, P. Baudrenghien, J. Uythoven,
Nominal intensity bunches ● First ramp with nominal intensity bunches suffered from an instability appearing around 1.8 TeV. ● Nominal intensity bunches.

Nominal intensity bunches ● First ramp with nominal intensity bunches suffered from an instability appearing around 1.8 TeV. ● Nominal intensity bunches.
LHC Progress Friday 30 th October 2015 Coordination Week 44: Massimo Giovannozzi, Wolfgang Hofle, Jorg Wenninger.

LHC Progress Friday 30 th October 2015 Coordination Week 44: Massimo Giovannozzi, Wolfgang Hofle, Jorg Wenninger.

Similar presentations

Ads by Google