Beam Gas Curtain: new instrument for LHC Run 3

Installation of the Beam Gas Curtain at P4 - gaz injection test
BGC installation at LHC Point 4 (Image: CERN)

The Large Hadron Collider (LHC) will be restarted on 27 March 2023 following its year-end technical stop. During this stop, new instruments were installed in the LHC tunnel, including the Beam Gas Curtain (BGC).

After ten years of development, the BGC will start taking data on the LHC's proton beam this year during Run 3. It will provide precise 2D images of the alignment of the proton beams, making data taking more precise.

The BGC instrument was designed for the high-luminosity upgrade of the LHC as part of a collaboration between CERN's Beam Instrumentation group, Liverpool University, the Cockcroft Institute and GSI.

Watch an animation of how the BGC works below:

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