FILL 10100
Summary
start: September 10, 2024 07:43:52 AM UTC
end: September 11, 2024 12:14:41 AM UTC
duration: 0 days 16:30:48.385375
tags:
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PHYSICS
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WIRES
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OP_DUMP
comments:
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Some fine tuning deployed for the longitudinal BU during the ramp,https://gitlab.cern.ch/lhclumi/fill-tagger/-/blob/master/elog_follow_up_md/10100.md#2024-09-10-100947
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Delayed injection due to hiccups with the PS
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Very long (1h) injection
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Losses at start of ramp are quiet high (up to 60% of the threshold), a lot of unbunched beam
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- 1e-3 Qh for B2 helps the life time in collisions
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A sudden change of lumi in all IPs outside of beta* change or flattening. Seems to be an orbit effect coming from ~6R5, compatible with a quadrupole shift (~0.18 urad kick, opposite signs for the 2 beams), alleviated by the increased gain in the CO feedback https://gitlab.cern.ch/lhclumi/fill-tagger/-/blob/master/elog_follow_up_md/10100.md#2024-09-10-153513
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BSRT B1V problem of degradation https://gitlab.cern.ch/lhclumi/fill-tagger/-/blob/master/elog_follow_up_md/10100.md#2024-09-10-181547
Cycle duration
Beta-functions at the IPs
Crossing angles
Octupoles
Trims
Tune trims
Chromaticity Trims
Intensity
Cycle intensity
BBB SB intensity
Violin BBB intensity
SB bunch intensity
Bunch Length
Bunch Length Fill
Emittance
B1 along the cycle
B2 along the cycle
Emittance growth at injection
Summary violin plot
BBB in SB for B1
BBB in SB for B2
Bunch brightness
Beam properties summary
Luminosity
Overview
Luminous Regions
BBB luminosity in SB
Cross-sections
ADJUST
STABLE BEAM
