Low-Impedance Primary Collimators with BPMs (TCPPMs)
Description
Four primary collimators of IR7, the horizontal and the vertical ones of both beams, will be replaced by low-impedance collimators with jaws made of MoGr. The news collimators use the latest design that includes in-jaw beam position monitors. The construction of new primary collimators is part of the consolidation of the IR7 system, necessary to ensure high-efficiency operations in Run 3 and in the HL-LHC era. The HL-LHC-WP5 also contribute to the constructions of these collimators through a partial funding of the active material.
The TCPPMs are produced through a construction contract in industry: 4 devices for the tunnel and 1 spare.
News and updates (last update: 28/04/2020):- First two TCPPM collimators installed in the LHC tunnel, TCP-C6R7-B2, TCP-D6R7-B2
- Issue with non-conformity on a vacuum bellow of the TCPPM#3 found, Dec. 2019. See EDMS documentation, doc. 2355344.
- First two TCPPM delivered to CERN, 29 Nov. 2020! image1, image2
Pictures
Layout DB functional positions
Name of the new collimator | Coll. Plane | Upstream in-jaw BPM | Downstream in-jaw BPM | Tank BPM |
---|---|---|---|---|
TCP.D6L7.B1 | V | BPTUV.D6L7.B1 | BPTDV.D6L7.B1 | BPTUH.D6L7.B1 |
TCP.C6L7.B1 | H | BPTUH.C6L7.B1 | BPTDH.C6L7.B1 | BPTUV.C6L7.B1 |
TCP.D6R7.B2 | V | BPTUV.D6R7.B2 | BPTDV.D6R7.B2 | BPTUH.D6R7.B2 |
TCP.C6R7.B2 | H | BPTUH.C6R7.B2 | BPTDH.C6R7.B2 | BPTUV.C6R7.B2 |
References
- LHC-TC-EC-0016 No. 1973590, Installation of Low-Impedance Primary Collimators with BPMs (TCPPMs) in IR7.
- EMDS No. 2082573 (IN PROGRESS), LS2 Collimators (TCLD, TCSP)- Manufacturing Review.
Status and links to MTF documentation
Assembly Id. | Link | Comments | Tunnel Photos |
---|---|---|---|
HCTCPPM001-CZ000001 | MTF | Primary Collimator with Pick-up | All photos |
HCTCPPM001-CZ000002 | MTF | Primary Collimator with Pick-up | All photos |
HCTCPPM001-CZ000003 | MTF | Primary Collimator with Pick-up | Spare collimator |
HCTCPPM001-CZ000004 | MTF | Primary Collimator with Pick-up | All photos |
HCTCPPM001-CZ000005 | MTF | Primary Collimator with Pick-up | All photos |