LHC Injection and Beam Dump study group
The LIBD study group replaces the LTI project meetings, LBDS project meetings and LHC Injection working group meetings. It will follow issues for LHC injection, transfer lines and beam dumping, including system preparation, commissioning and performance.

The LIBD will be responsible for SPS to LHC TLs, LHC injections, LHC beam dump and LHC MKQA commissioning, as well as SPS and LHC protection devices. The activities also include involvement in overall commissioning, collimation and machine protection. The LIBD reports to the LMC.

Concerning beam commissioning this page contains specific resources and issues for SPS extractions, TI 2/TI 8 transfer lines, IR2/IR8 injections, B1 and B2 LBDS, and MKQA systems.

Coordination

Safety/procedures

Documentation & resources

 

2008/2009 historic

 

LIBD meetings

2009 meetings archive

2010 meetings archive

 

2011 meetings

14.01: kicker TS recommissioning 

18.01: Sunglasses, TL collimator shielding, etc.

21.01: kicker TS recommissioning

15.02: Sunglasses and LHC start-up

08.03: TI 8 shielding update

12.04: ABT work for 2013 Long Shutdown

17.05: MKI

20.05: Q6.L8 damage following MKI break

 down

01.07: MKD synchronisation & power trigger

24.08: TDI vacuum issues with beam

30.08: MKI UFO follow-up meeting (slides)

20.09: Injection status, TDI shielding, special BLMs

11.10: TCDIs at 5 sigma, AGC at 3.5 TeV, injection of 25 ns trains

25.10 RBAC roles and TDI heating 

01.11: MKI vacuum, heating and possible improvements

08.11: AGC and lumi, MKE waveform, UFO MD and TDI MD results

15.11: MKI UFOs

22.11: TI8 stability, Abort Gap Cleaning, MDs for 2012

23.11: MKI heating

29.11: MKI UFOs - particle sizes

09.12: LBDS tests at 7TeV, MKD/MKB test procedures, MKD switch exchange, Christmas TS work.

 

2012 meetings

24.01 MKD radiation, LS1 work, 2012 tests at 7 TeV.

14.02 TDI beamscreen issues

05.03 7 TeV run in 2012, 2012 startup, LS1 planning

15.03 Open circuit Q3.L2 after MKI erratic

08.05 TDI heating, MKI voltage reduction

15.05 TDI redesign meeting #1

 

 

 

 

Outstanding actions

 

 

 

SPS safety chains - overview

TT60/TI 2 access zones

TT40/TI 8 access zones

 

SPS intensity interlock

 

Procedures lists & status

 

 

 

 

Optics files:

LSS4/TT60 twiss file

TI 8 optics files

LSS6/TT60 twiss file

TI 2 twiss file

SPS MAD-X files and resources

Aperture files:

  TI 8 aperture plots 

Aperture measurements in injection region - B1 test

Documents:

EDMS doc for LBDS MPS commissioning

EDMS doc for injection MPS commissioning

 

Drawings:

LSS6 drawing SPSLNINS0086 (hpgl)

TT60 drawing SPSLTT600001 (hpgl)

TI 2 drawings

Settings/resources:

LSS6 extraction settings

LSS6 MST/E girder positions

B1 position on P2 Injection Screens

B1 MKI strength

Injecting B1 with MKI off

 

** B2 position on P8 Injection Screens **

** B2 MKI strength **

** Injecting B2 with MKI off **

 

Reference settings for injection BTV zooms

TDI positions

Blowup from Al2O3 screen

MKI kickers:

Timing distribution

Timing rack layout

Patch panel

MKI8 electrical diagram

MKI8 hydraulic

MKI8 rack layout

Slow controls IO (draft)

modifying strength - SoftStart issues

 

Beam dump system:

 Reference kicks for MKD, MKB, MSD

 Expected positions on screens and BPMS