1 / 6

Tuesday Morning 29-Jan 2013 Bernhard Holzer, Joerg Wenninger

Tuesday Morning 29-Jan 2013 Bernhard Holzer, Joerg Wenninger. Monday Morning ... after ALICE polarity flip 7:20h Injection for validation cycle 8:00h ramp / squeeze / adjust 8:50h collisions optimised loss map for pos. off-momentum

summer
Download Presentation

Tuesday Morning 29-Jan 2013 Bernhard Holzer, Joerg Wenninger

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Tuesday Morning 29-Jan 2013 Bernhard Holzer, JoergWenninger • Monday Morning • ... after ALICE polarity flip • 7:20h Injection for validation cycle • 8:00h ramp / squeeze / adjust • 8:50h collisions optimised • loss map for pos. off-momentum • 10:00hset up for VdM scans • Orbit excursion interlock (BPMs in IR6)

  2. Tuesday Morning 29-Jan 2013 11:40h injection ... but ... 12:30h beam dump: Orbit excursion interlock (BPMs in IR6) Pilot Pb bunch sat too long at injection and intensity dropped below threshold of BPM at Pt 6. 12:40h injection finished, prepare ramp 13:20h ramp ... and beam dump at 1.8 TeV spurious BLM trigger Beam dump from BLM at pt 4 but no sign of losses LHC 8:30 meeting

  3. Tuesday Morning 29-Jan 2013 • Monday Late • 15:50h new injection ... to be optimised (SPS inj kicker delay) • 17:30h injection for physics • 19:30hramp etc • ... not really easy going • lifetime beam2 ≈ 1h • 20:30hoptimising IPs & stable beams • 21:00h start VdM scan in IP1 • - separation plane – LHC 8:30 meeting

  4. Tuesday Morning 29-Jan 2013 • Monday Late / Night • 21:30h IP1 VdMcrossing plane • btw ... smooth operation • lifetime • 23:00h start CMS VdMscan • 2:00h Preparing for Distance-Scale Calibration scans • (VdM scans with vertex offset) • 3:20h beam dump: • Orbit excursion interlock (BPMs in IR6) • some Pb bunches reached the low intensity threshold τ LHC 8:30 meeting

  5. Tuesday Morning 29-Jan 2013 • Monday Night • 3:20h beam dump: • Orbit excursion interlock (BPMs in IR6) • some Pb bunches reached the low intensity threshold • 4:26h machine cycled, new injection ... again SPS optimised IPb at ramp IPb at ramp 1*1010 4*109 LHC 8:30 meeting

  6. Tuesday Morning 29-Jan 2013 • Monday Night / Tuesday Morning • 6:00h injection ... for the remaining VdM scans • fyi ... SPS injection optimisation • Plan: finish the VdM scans • flip LHCb • back to physics LHC 8:30 meeting

More Related