TCSPM collimators

Description

Eight new low-impedance secondary collimators with Mo-coated MoGr jaws, called TCSPMs, will be installed in IR7 to reduce significantly the impedance of the betatron collimations system and ensure with sufficient margin the stability of the brighter beams planned for Run 3. These new collimators use the latest design that includes in-jaw beam position monitors.

This activity is fully funded by the HL-LHC project (WP5) and represent the first stage of the impedance upgrade plans that will continue in LS3 with the addition of 10 more TCSPMs.

Depending on the location in IR7 - see below - the new TCSPM collimators will either replace and existing secondary collimator of type TCSG, or be added to the empty slots formerly called "TCSM": the latter are already-cable slots foreseen already for the low-impedance upgrade od the betatron cleaning system.

The TCSPMs are produced through a construction contract in industry: 8 devices for the tunnel and 2 spares.

Pictures

Layout DB functional positions

Name of the new collimatorColl. PlaneUpstream in-jaw BPMDownstream in-jaw BPMTank BPM
TCSG.D4L7.B1VLHC.BPTUV.D4L7.B1LHC.BPTDV.D4L7.B1 LHC.BPTUH.D4L7.B1
TCSPM.B4L7.B1HLHC.BPTUH.B4L7.B1LHC.BPTDH.B4L7.B1 LHC.BPTUV.B4L7.B1
TCSPM.E5R7.B1SLHC.BPTUJ.E5R7.B1LHC.BPTDJ.E5R7.B1 LHC.BPTUT.E5R7.B1
TCSPM.6R7.B1HLHC.BPTUH.6R7.B1LHC.BPTDH.6R7.B1 LHC.BPTUV.6R7.B1
TCSG.D4L7.B2VLHC.BPTUV.D4L7.B2LHC.BPTDV.D4L7.B2 LHC.BPTUH.D4L7.B2
TCSPM.B4L7.B2HLHC.BPTUH.B4L7.B2LHC.BPTDH.B4L7.B2 LHC.BPTUV.B4L7.B2
TCSPM.E5R7.B2SLHC.BPTUJ.E5R7.B2LHC.BPTDJ.E5R7.B2 LHC.BPTUT.E5R7.B2
TCSPM.6R7.B2HLHC.BPTUH.6R7.B2LHC.BPTDH.6R7.B2 LHC.BPTUV.6R7.B2

References

Status

Assembly Id.LinkLinkComments
CINELHCTCSPM001-CZ000001MTFEDMSSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ000002MTFEDMSSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ000003MTFEDMSSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ000004MTFEDMSSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ000005MTFEDMSSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ000006MTFEDMSSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ000007MTFEDMSSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ000008MTFEDMSSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ000009MTFSecondary Collimator with Pick-up
CINELHCTCPPM001-CZ0000010MTFSecondary Collimator with Pick-up