Injection of long bunches into SPS capture of each bunch in 2 neighboring 200 MHz buckets Successfully tested in MDs at 2 012 13 run with 165x10 11 pdoublet Clear enhancement on ID: 475508
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Slide1
Doublet beam: the future of scrubbing?
Injection of long bunches into SPS, capture of each bunch in 2 neighboring 200 MHz bucketsSuccessfully tested in MDs at 2012/13 run with 1.65x1011 p/doublet Clear enhancement on e-cloud detectors compared to standard 25 ns beam measured
25 ns
5 ns
MBA
MBB
1.6x10
11
p
/doublet
1.6x10
11
p/b
1.6x10
11
p/b
1.6x10
11
p
/doubletSlide2
Doublet beam: the future of scrubbing?
Injection of long bunches into SPS, capture of each bunch in 2 neighboring 200 MHz bucketsSuccessfully tested in MDs at 2012/13 run with 1.65x1011 p/doublet Clear enhancement on e-cloud detectors compared to standard 25 ns beam measuredEnhanced pressure rise compared to standard 25 ns beam measured in the arcs
25ns standard - 1.6x10
11
p/b
1.6x10
11
p
/doublet
25ns “doublet”
25 ns
5 nsSlide3
Doublet beam: the future of scrubbing?
Injection of long bunches into SPS, capture of each bunch in 2 neighboring 200 MHz bucketsSuccessfully tested in MDs at 2012/13 run with 1.65x1011 p/doublet Clear enhancement on e-cloud detectors compared to standard 25 ns beam measuredEnhanced pressure rise compared to standard 25 ns beam measured in the arcs For scrubbing SPS in 2014 and LHC in 2015 ?
450GeV
6.5 – 7
TeV
δ
dip
≤2.
δ
dip
≈1.45
δ
dip≤1.4SPS
LHC