LHC Standard: LHC 48b standard - 2023

Beams with LHC as destination that contain "8b4e" and "48b" in their LSA names.

Intensity cut-offs: 400 - 1300 e10 ppp.

Intensity

Showing intensity after injection and before extraction.

Nxcals variables: PR.DCAFTINJ_1:INTENSITY, PR.DCBEFEJE_1:INTENSITY.

Transmission

Showing transmission as follows:

• PS Ring transmission: ratio between intensity after injection for both batches (PR.DCAFTINJ_2) and intensity before extraction (PR.DCBEFEJE_1).

• Extraction efficiency: ratio between intensity in the last BCT of the line and intensity in the ring before extraction: F16.BCT.212 / PR.DCBEFEJE_1:INTENSITY

• Overall transmission: the ratio between intensity in the last BCT of the line and intensity after injection of both batches: F16.BCT.212 / PR.DCAFTINJ_1:INTENSITY.

Data is filtered so only values between 0 and 150 % are shown.

The normalised transmission is shown in the second plot:

• PS Ring transmission - Normalised: extraction/injection / PR.DCAFTINJ_1:INTENSITY.

• Extraction efficiency - Normalised: Extraction efficiency / PR.DCBEFEJE_1:INTENSITY.

• Overall transmission - Normalised: Overall transmission / PR.DCAFTINJ_1:INTENSITY.

TT2 trajectories

Showing horizontal trajectories in TT2.

Data from UCAP: PS.F16.PROC.BPMALPS.

Showing vertical trajectories in TT2.

Data from UCAP: PS.F16.PROC.BPMALPS.

Limitation Diagram

BCMS limitation diagram before PS extraction and corresponding emittance data obtained since the start of the 2024 LHC physics run. To compare to pre-LS2 excluded areas, select the corresponding scenario from the dropdown menu.

Transverse emittance evolution

Showing the transverse emittance measured with the wire scanners since the beginning of the 2024 LHC physics run. Emittance measurements take place every day and, if time permits, before every LHC fill.