LHC 72B - 2025

Beams with LHC or SPS as destination that contain "72b" in their LSA name.

Intensity cut-offs: 700 - 2300 e10 ppp.

Intensity

Showing intensity after injection and before extraction.

Nxcals variables: PR.DCAFTINJ_2:INTENSITY, PR.DCBEFEJE_1:INTENSITY.

Transmission

Showing transmission as follows:

• Beam transmission in the ring: ratio between intensity before extraction (PR.DCBEFEJE_1) and intensity after injection (PR.DCAFTINJ_1).

• Beam transmission in the transfer line: ratio between intensity in the last BCT of the line (F16.BCT.203) and intensity before extraction.

Bunch length

Showing the bunch length.

Nxcals variables: PS-LOG-BQM-UCAP:Quality:avgBunchLength_ns, PS-LOG-BQM-UCAP:Quality:numberOfBunches

Tails factor

Showing the average of the tail factor and its standard deviation.

Nxcals variables: PR.BWS.%%_UCAP:BestChannelResultSet1:qFactorMean, PR.BWS.%%_UCAP:BestChannelResultSet1:qFactorStd,

With the data from all the WireScanners.

Beam horizontal trajectories in TT2

Showing horizontal trajectories in TT2.

Nxcals variable: BPMALPS_TT_TT2.

Beam vertical trajectories in TT2

Showing vertical trajectories in TT2.

Nxcals variable: BPMALPS_TT_TT2.

Limitation Diagram

BCMS limitation diagram before PS extraction and corresponding emittance data obtained since the start of the 2025 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 2025 LHC physics run. Emittance measurements take place every day and, if time permits, before every LHC fill.