Ongoing upgrades on the road to HiLumi
CMS BRIL subsystems successfully removed
All four CMS Beam Radiation, Instrumentation, and Luminosity (BRIL) subsystems have been fully extracted from the heart of CMS, following several years of reliable operation. Known as Margherita, Capriocciosa, Hawaii and Calzone, the modules had been placed around the beampipe to measure luminosity and beam conditions.
The BRIL subsystems will be replaced with next-generation instrumentation designed to meet the challenging conditions of HiLumi LHC. In particular, the Fast Beam Condition Monitor (FBCM) will take their place as a standalone luminosity detector while also providing precise timing information, enabling improved measurement of background conditions associated with incoming particle beams. This will help enhance the quality of the data used by CMS researchers to investigate the particle collisions that take place inside the detector.
Their removal also makes way for the extraction of the Pixel and Strip detectors due to take place over the coming weeks.