saturday morning

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09:23 Dumped fill 2006 after 25h59m stable beams Atlas 100.5 pb-1 Alice 175 nb-1 CMS 98.3 pb-1 LHCb: 31.5 pb-1 Access for Alice 11:00 ALICE intervention on cooling finished Cycle Alice’s solenoid 12:15 Pilots in Saturday morning

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Saturday morning. 09:23 Dumped fill 2006 after 25h59m stable beams Atlas 100.5 pb-1 Alice 175 nb-1 CMS 98.3 pb-1 LHCb: 31.5 pb-1 Access for Alice 11:00 ALICE intervention on cooling finished C ycle Alice’s solenoid 12:15 Pilots in. Injection. Bunch intensity 1.25e11 Injection clean - PowerPoint PPT Presentation

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Page 1: Saturday morning

09:23 Dumped fill 2006 after 25h59m stable beams Atlas 100.5 pb-1 Alice 175 nb-1 CMS 98.3 pb-1 LHCb: 31.5 pb-1

Access for Alice 11:00 ALICE intervention on cooling finished Cycle Alice’s solenoid 12:15 Pilots in

Saturday morning

Page 2: Saturday morning

Bunch intensity 1.25e11 Injection clean SPS BQM stopped a number of injections due to bunch

length wirescans 144b-train:

B1-H: 1.4 B1-V: 1.3 B2=H: 1.6 B2-V: 1.9

Vertical blow-up on a least some bunches fleeting noted

13:45 Ramp started The Tune FB stopped in the B1-H plane several times at the

start of the squeeze – measurement stability out of bounds

Injection

Page 3: Saturday morning

7-8-2011 LHC status

Page 4: Saturday morning

14:45 Stable beams Total intensity 1.73e14 Average bunch intensity 1.25e11 Initial luminosity ~1.95e33 Average emittance ~2.15 microns

Note high vacuum around 3 & 7

Fill 2007

Page 5: Saturday morning

Vacuum

7-8-2011 LHC status

Page 6: Saturday morning

Bunch-by-bunch from BRAN

7-8-2011 LHC status

Page 7: Saturday morning

Losses on TCTVB.4R8

LHC status7-8-2011

We have found that the losses at the TCTVB.4R8 are actually correlated with the losses at the TCP of IP3. What we see is

then a leakage from the momentum cleaning.

Page 8: Saturday morning

Temperature TCTVB.4R8

LHC status7-8-2011

Page 9: Saturday morning

Vacuum

LHC status7-8-2011

Note also improvement in 3 & 7

Page 10: Saturday morning

07:40 Fill 2007 dumped – PIC PLC R1 UJ16 Lost matching section R1 Markus Zerlauth: memory corruption, remote reset possible

Stable beams: 17h12m ~80 pb-1 delivered in Atlas/CMS

Reset, pre-cycle and go

Sunday morning

7-8-2011 LHC status

Page 11: Saturday morning

LHC status7-8-2011

Page 12: Saturday morning

LHC status7-8-2011