'Stable beams' diaporamas de présentation

Sunday 17.04

Sunday 17.04. 03:00 injection 336 bunches, ramp, squeeze luminosity. 03:19 Stable beams #1718. Duration: 9h08. Peak lumi ATLAS/CMS: 3.8/3.6e32 . Int. lumi ATLAS/CMS/ LHCb /ALICE: 10.1/9.6/4.3/0.06 pb-1 .

686 views • 56 slides

LHC beam commissioning workshop Evian January 2010

LHC beam commissioning workshop Evian January 2010. The good, the bad, and the not very pretty. Evian 2010. Sessions on Review of 2009 LHC beam operation and models Beam diagnostics Injection & Ramp & Squeeze & Adjust & Stable beam Machine protection

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UFOs in the LHC

UFOs in the LHC. Evian Workshop 2011 Tobias Baer December, 13 th 2011.

445 views • 32 slides

Status with LHC Beam

Status with LHC Beam. Coordination: Mike Lamont, Ralph Assmann Last week coordination: Malika Meddahi , Joerg Wenninger Thanks to operations, equipment groups and experiments. Last Two Weeks. Last week: Technical stop, advanced to fix finger problem in IR2 injection region.

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Some beam-beam effects during the intensity ramp-up 06/04/2012-08/04/2012

Some beam-beam effects during the intensity ramp-up 06/04/2012-08/04/2012. T. Pieloni with many inputs from: G . Arduini , X. Buffat , W . Herr, F. Roncarolo and the OP crews on shift . Summary of the fills.

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LHCf ; zero degree measurements for cosmic-ray model calibration

LHCf ; zero degree measurements for cosmic-ray model calibration . Takashi SAKO (STE lab./KMI, Nagoya University) f or the LHCf Collaboration. Contents. Physics Motivation Experiment Results from 0.9 and 7TeV pp collisions Low luminosity operation after LS1. Physics Motivation.

365 views • 24 slides

Outline of 2014/2015 plans

Outline of 2014/2015 plans . V. Kain, M. Lamont, J. Wenninger. Current LS1 Planning . 2013. 2014. Sector test - November. 2015. Beam Commissioning. Sequence of Preparation for Physics post LS1. Individual System Tests + Powering Tests Dry Runs Sector Test Machine Check-out

349 views • 22 slides

Tuesday 3.4.2011

Tuesday 3.4.2011. Tuesday Morning/Afternoon/Night. asynchronous beam dump in collisions B1H loss map and an asynch beam dump with inj protection out ramp with probes to measure chroma and verify b3 corrections (chirp on, no long blow up, extra RF mod amplitude)

302 views • 20 slides

Wednesday /Thursday

Wednesday /Thursday . 09-11:00 Verification of the LSS6 interlocked BPMs: took longer to fill due to some problems with RF cavities in the PS. In the mean time analysis of the loss maps and asynch dump by experts ? OK

265 views • 17 slides

Wed 23.05.12

Wed 23.05.12. 08:55 Fill 2653 stable beams 1.40e11 ppb, 5.6 10 33 cm -2 s -1 peak lumi , 11.6 pb-1 total lumi delivered. 09:31 Dumped by collimator interlock: TCDD (injection movable mask/collimator) for beam 1. 10:55 Access for replacement of power supply for PXI rack.

326 views • 17 slides

Monday 6 th August & night

Monday 6 th August & night. 04:20 SPS extraction kicker problem - access in the mean time. ALICE solenoid fixed. 13:00 Pre-cycle by running nominal ramp with reduced octupole currents in the ramp. 15:00 Injecting physics beams fill #2917.

238 views • 14 slides

Tuesday 1.5.2012

206 views • 12 slides

Fill 2991

Fill 2991. B1V Fill 2991 (start of adjust at 18:26 on 20/08). 2 visible tune Lines in collision. Excitation in B1V. Synchrotron side bands visible due to high chromaticity?. B2V Fill 2991 (start of adjust at 18:26 on 20/08 ). B1H and B1V before adjust. B1H and B1V in stable beams.

208 views • 9 slides

LHC Status Sat Morning 18 -June Bernhard Holzer, Gianluigi Arduini et al

LHC Status Sat Morning 18 -June Bernhard Holzer, Gianluigi Arduini et al. Tentative Planning: Luminosity 1092 x 1092 Access: installing low pass filter at RF couplers test & 1092 again Luminosity 1236 x 1236 instead ... a lot of trouble . 17. June.

242 views • 9 slides

Turn around time

Turn around time. Physics to physics. With a little bit of room for optimization. Ramp to 7 TeV. Ramp to 7 TeV given same PLEP parameters presently in use: 1300 seconds (~22 minutes) . 7 TeV r amp-down / precycle . In reality.

349 views • 8 slides

Friday 15 th June

Friday 15 th June. 01:11 Injection. 02:42 Stable beams #2733 . Initial lumi : 6.7e33cm-2s-1. 08:17 Reached 5.976/6.042 fb-1 (ATLAS/CMS) for 2012 . 15:54 Beam dumped, triplet RQX.L2 tripped. Delivered lumi 183 pb-1. 17:00 Drink for 5 fb-1 18:00 Drink for 6 fb-1

218 views • 8 slides

Day 26.3.

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 IR1 TCT adjustment. 14:00-18:00: Prepare next fill Orbit in the ramp now very good, < 0.28 mm both planes and beams.

192 views • 7 slides

Fri 2/12

216 views • 6 slides

159 views • 6 slides

Wednesday 14 th July

Wednesday 14 th July. Stable beams 11:26 All Roman pots to 30 sigma Modification to the longitudinal damper: increase of max amplitude from 0.6 deg rms to 1 deg rms @ 40 MHz. 17:03 Lost beams Multiple FMCM Instability on the electrical network 17:02:53. Evening

173 views • 6 slides