MD1 Preparation

Wednesday 26 Apr 2023, 14:00 → 16:00 Europe/Zurich

Zoom

Georges Trad (CERN), Giovanni Iadarola (CERN), Jan Uythoven (CERN)

14:00 → 14:10 Introduction and upcoming timeline

Speaker: Jan Uythoven (CERN)

LSWG on MD1.pdf

LSWG on MD1.pptx

14:15 → 14:25 RF studies

MD9525 - Injection power transients with different RF settings
MD9523 - Threshold of longitudinal loss of Landau damping

Speaker: Helga Timko (CERN)

LHC_RFMD_MD1_2023.pdf

14:30 → 14:40 Beam instrumentation studies

MD6950 - Study of beam loss patterns for improving online BLM diagnostics
MD9504 - Diamond detector and ionization chamber BLM response studies at injection energy
MD9545 - Wire-scanner prototypes and operational system beam size measures comparison

Speaker: Sara Morales Vigo (University of Liverpool (GB))

20230426_LSWG_BI_SaraMorales.pdf

20230426_LSWG_BI_SaraMorales.pptx

14:45 → 14:55 OMC studies

MD9543 - Failing IR correctors and novel method to find local errors
MD9549 - Nonlinear optics at injection
MD6943 - 60deg arc FODO cell phase advance LHC optics

Speakers: Ewen Hamish Maclean (CERN), Jacqueline Keintzel (CERN), Tobias Hakan Bjorn Persson (CERN)

2023_MD1_MD9549.pdf

MD9543 - Failing IR correctors and novel method.pdf

MD9543 - Failing IR correctors and novel method.pptx

15:00 → 15:10 Collimation studies

MD7007 - Operation of crystal collimators during energy ramp
MD9548 - Cleaning performance for different configurations to reach smaller beta star
MD9487 - Collimator Angular Alignment

Speaker: Marco D'Andrea (CERN)

CollimationMDs2023.pdf

CollimationMDs2023.pptx

15:15 → 15:25 Halo and tail population studies

MD9325 - Beam Halo Population Measurements using Collimator Scans at the End of Squeeze
MD9363 - Beam Halo Population Measurements using Collimator Scans at the Flat Top
MD9364 - Beam Halo Population Measurements using Collimator Scans at Injection
MD9503 - Beam tail population and diffusion measurements using collimator scans

Speaker: Pascal Hermes (CERN)

230330_LWSG_Halo_MDs.odp

230330_LWSG_Halo_MDs.pdf

15:30 → 15:40 e-cloud studies

MD9551 - e-cloud heat load with 2.2e11 p/bunch at injection energy
MD6845 - Instability measurements with varying bunch intensity
MD6923 - Slow beam degradation from incoherent electron cloud effects on the 3Qy resonance

Speakers: Konstantinos Paraschou (CERN), Lotta Mether (CERN)

20230426_LSWG_ecloud.pdf

20230426_LSWG_ecloud.pptx

15:45 → 15:55 Stability and noise studies

MD9403 - Octupole thresholds with trains of bunches
MD9406 - Bunch-by-bunch tune shift measurements
MD9407 - Noise spectrum and emittance growth with different ADT gain
MD9603 - BB limit at reduced crossing angle (EOF)

Speakers: Guido Sterbini (CERN), Lorenzo Giacomel (CERN), Xavier Buffat (CERN)

lswg_instabilities_and_noise.pdf