1 / 12

MCWG & H4IRRAD news Report at the RadWG meeting 6 th July 2012

MCWG & H4IRRAD news Report at the RadWG meeting 6 th July 2012. M. Calviani (EN/STI) for the MCWG and the H4IRRAD team. LHC operation. ~7 fb -1 for the high lumi experiment (1.5x 2011) 7x times larger radiation levels with respect to previous RadWG

hayes
Download Presentation

MCWG & H4IRRAD news Report at the RadWG meeting 6 th July 2012

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. MCWG & H4IRRAD newsReport at the RadWG meeting6th July 2012 M. Calviani (EN/STI) for the MCWG and the H4IRRAD team

  2. LHC operation • ~7 fb-1 for the high lumi experiment (1.5x 2011) • 7x times larger radiation levels with respect to previous RadWG • Forecasts are to (at least) double luminosity (~15 fb-1) by end of 2012 Today’s RadWG Previous RadWG M. Calviani - RadWG - MCWG & H4IRRAD news

  3. Duration of the fills • Impressive performances: • Longer stable beams periods • Average of ~8 hours fills • Thanks to the RadWG reaction! Average stable beam duration M. Calviani - RadWG - MCWG & H4IRRAD news

  4. Peak luminosity/fill • Higher beam current  higher peak lumi  higher beam-gas rate! 6.5*1033 cm-2s-1 M. Calviani - RadWG - MCWG & H4IRRAD news

  5. UJs 2012 W26 (~7 fb-1) 2011 W49 (~5.5 fb-1) • Gained a factor of 6x at the junction between UJ13/17 and UJ14/16  inside up to ~10x • Expected increase in UJ56 due to luminosity • UJ76 increase more due to collimator loading P. Mala M. Calviani - RadWG - MCWG & H4IRRAD news

  6. RRs 2012 W26 (~7 fb-1) 2011 W49 (~5.5 fb-1) • RRs P1/5 slightly less loaded than last year (despite higher luminosity) due to the “TCL effect” (closed at 10s) • Measured & confirmed by simulations (R. Kwee) • RRs P7 L&R effect is inversed – to be better understood P. Mala M. Calviani - RadWG - MCWG & H4IRRAD news

  7. P8 + UX45 2012 W26 (~0.7 fb-1) 2011 W49 (~1.17 fb-1) • P8 (UX/US85) – levels driven by luminosity (less this year with respect to last year – unlike higher lumi exp.) • UX45 – higher radiation levels – beam gas: 2012 higher bunch intensity and more total intensity UX85 P. Mala M. Calviani - RadWG - MCWG & H4IRRAD news

  8. R2E-Dashboard b-version LHC R2E Dashboard • Comments are welcome! Any? EN/ICE M. Calviani - RadWG - MCWG & H4IRRAD news

  9. BatMons in PS/SPS • TT83: • 2 BatMons installed in close to BE/BI electronics • ~3-8*109 HEH/cm2 until TS#2 (~10 Gy) • Feedback from BE/BI together with H4IRRAD tests • PS ring: • 1 BatMon in the BE/RF alcove in SS77 + 1 BatMon ion the EN/CV alcove • ~1.5-2*1011 HEH/cm2 until TS#2 (~200 Gy) • Useful to cross-check DGS/RP simulations in the PS • AD-target • 1 BatMon close to access point to evaluate possible effects on the GS/ASE new access point (MAD/PAD) • ~5*106 – 107 nth/cm2 until TS#2 (2.5 mSv/h during operation) M. Calviani - RadWG - MCWG & H4IRRAD news

  10. H4IRRAD news – 1st slot operation • 1st slot successfully run ~20 days 14th May – 3rd June • TE/EPC, TE/ABT (IGBTs), BE/BI GEMs, PH/UCM, etc. • High beam availability coupled with higher beam intensity (3x) and energy (280  400 GeV/c) • Up to 150 Gy (or 3*1011 HEH/cm2/slot) in the internal zone • Up to 3*1010 HEH/cm2/slot in the external zone • Increase radiation levels by factor of 5-6x for the same period! • Irradiation logs provided at cern.ch/h4irrad R. Kwee B. Biskup M. Calviani - RadWG - MCWG & H4IRRAD news

  11. H4IRRAD – 2nd slot preparation • 2nd slot foreseen to start 3rd August 2012 for 14 days • EN/ICE PLCs moved to 3rd slot (material not available) • Kick-off meeting this afternoon at 15h in 864-1-C02 M. Calviani - RadWG - MCWG & H4IRRAD news

  12. H4IRRAD – 3rd slot forecast • To start 16th November for 11 days • Possible extension (?) due to the increase of the LHC pp run until middle of December • To be discussed in the next few weeks • Last possibility to test at CERN before March 2015! M. Calviani - RadWG - MCWG & H4IRRAD news

More Related