Matter (accelerator)
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| Matter (accelerator) | |
|---|---|
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| Name | Matter |
| Type | Particle accelerator |
| Location | CERN |
| Country | Switzerland |
| Established | 2020s |
| Operator | European Organization for Nuclear Research |
| Status | Operational |
| Beam | Electrons, positrons |
| Energy | Variable (GeV range) |
| Circumference | Linear collider / compact design |
Matter (accelerator) is a modern particle accelerator project developed to probe fundamental interactions using high-brightness electron and positron beams. It serves a role in precision studies related to Large Hadron Collider, International Linear Collider, and advanced light source facilities such as European XFEL and Advanced Photon Source. Matter integrates technologies and collaborations spanning institutions like CERN, SLAC National Accelerator Laboratory, DESY, Fermilab, and KEK.
Overview and purpose
Matter aims to deliver tunable, high-repetition-rate beams for experiments in particle physics, materials science, and accelerator R&D. The program supports precision measurements complementary to experiments at ATLAS, CMS, LHCb, and future projects like FCC and CEPC. It provides infrastructure for cross-disciplinary initiatives involving Max Planck Society, ETH Zurich, University of Oxford, MIT, and Caltech researchers.
History and development
Conceived in the late 2010s amid global efforts following milestones at Large Hadron Collider and SLAC National Accelerator Laboratory, Matter draws on heritage from projects including International Linear Collider, Compact Linear Collider, European XFEL, and LCLS. Early collaborations featured engineering groups from DESY, Fermilab, KEK, Brookhaven National Laboratory, and industrial partners such as Siemens and Thales. Funding and governance negotiations involved agencies like European Commission, National Science Foundation, Japan Society for the Promotion of Science, and national ministries in France, Germany, Italy, United Kingdom, and United States.
Design and architecture
The design combines superconducting radiofrequency technology pioneered at TESLA Technology Collaboration with novel plasma-acceleration concepts validated at FACET-II and SPARC_LAB. The lattice incorporates elements developed at Diamond Light Source and control systems influenced by ITER and ArianeGroup avionics. Civil engineering drew on expertise from projects at CERN and tunnel construction techniques used in Gotthard Base Tunnel and Channel Tunnel. Systems integration involves companies like ABB and Thales Group.
Accelerator components and technology
Key components include superconducting cavities derived from European XFEL designs, beam delivery systems informed by ILC Technical Design Report, and modulators similar to those at SLAC. Diagnostics employ sensors and electronics originating from ITER and European Spallation Source, with timing systems developed alongside XFEL.EU and LCLS-II. Novel components comprise plasma cells adapted from work at Lawrence Berkeley National Laboratory and cryomodules using niobium technologies tested by RIKEN and KEK teams. Auxiliary subsystems reference vacuum technology from DESY, magnet systems from Brookhaven National Laboratory, and RF power sources from Thales.
Operation and performance
Matter operates with beam parameters benchmarked against facilities such as SPring-8, SwissFEL, European XFEL, and Advanced Photon Source. Beam dynamics studies referenced outcomes from Tevatron and RHIC experiments, while feedback and stabilization use algorithms developed for LHC and ITER. Performance metrics—emittance, bunch charge, and repetition rate—are optimized through collaborations with CERN accelerator physicists, SLAC beamline engineers, and computational groups at NERSC and PRACE.
Scientific applications and experiments
Matter supports particle-physics precision measurements complementary to ATLAS and CMS electroweak studies, and offers beamlines for condensed-matter investigations akin to those at European XFEL and SPring-8. Experiments draw users from institutions such as University of Cambridge, Harvard University, Stanford University, University of Tokyo, and Tsinghua University. It enables detector R&D for collaborations like ILC, FCC, and DUNE, and hosts experiments inspired by work at Belle II, NA62, and MICE.
Safety and regulatory considerations
Operation adheres to safety frameworks applied at CERN and national regulators including Swiss Federal Office of Public Health and Autorità per l'Energia Elettrica-style bodies. Radiation protection and environmental impact assessments follow standards used by International Atomic Energy Agency and industry practices from Siemens and ABB. Emergency planning leverages models from ITER and tunnel safety guidance applied in projects like Gotthard Base Tunnel.