2010 Briefings, Schedules and Problems

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Danny252
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Re: 2010 Briefings, Schedules and Problems

Post by Danny252 » Wed Mar 31, 2010 1:20 pm

30 TUE 1500-2300 Measurements and collisions at 3.5 TeV
30 TUE 2300-0700 Collisions at 3.5 TeV
31 WED 0700-1500 Collisions at 3.5 TeV- Test of End of Fill ADJUST mode
31 WED 1500-2300 Collisions at 3.5 TeV and Lumi scans
31 WED 2300-0300 Collisions at 3.5 TeV
1 TH 0700-1500 Chromaticity measurement along the ramp
1 TH 1500-2300 Squeeze test - beta beat measurement
1 TH 2300-0700 Collisions at 3.5 TeV
2 FRI 0700-1500 Feedbacks
2 FRI 1500-2300 Squeeze - second test / Beta Beat along the ramp - Beta* knobs
2 FRI 2300-0700 Collisions at 3.5 TeV
3 SAT 0700-1500 Collisions at 3.5 TeV - Polarity swap?
..And then Collisions, collisions, collisions...

Interesting points are the squeeze tests on Thursday/Friday afternoons, and the "Feedbacks" (what are these?) on Friday. Not a clue what Polarity swap refers to - some magnet somewhere?

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DCWhitworth
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Re: 2010 Briefings, Schedules and Problems

Post by DCWhitworth » Tue Apr 20, 2010 11:35 am

Program for this week appears interesting.

Thursday and Friday night shift they're planning running @ 3.5TeV with squeezed, stable beams for physics

Saturday and Sunday night shift the plan is for high intensity stable beams at 450GeV
DC

The LHC - One ring to rule them all !

tomey36
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Re: 2010 Briefings, Schedules and Problems

Post by tomey36 » Tue Apr 20, 2010 5:18 pm

yep very cool. lets hope they can pull it off!

Harbles
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Re: 2010 Briefings, Schedules and Problems

Post by Harbles » Tue Apr 20, 2010 10:19 pm

Danny252 said " and the "Feedbacks" (what are these?) "

Beam and bunch position sensed, deviations and corrections calculated and fed to appropriate magnet or RF system.

http://accelconf.web.cern.ch/Accelconf/ ... tuzm02.pdf
General about accelerators and colliders, mentions LHC specifically for a bit at bottom of page 3.

I assume that since more information is now available after all the studies so far, the algorithms for the feedback computations need tweeking and testing.

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