CERN Beams Department

CERN Beams Department
Name	CERN Beams Department
Formation	2013
Headquarters	Meyrin
Region served	Europe
Parent organization	European Organization for Nuclear Research

CERN Beams Department

The Beams Department at the European Organization for Nuclear Research coordinates operation, development, and upgrade of particle accelerators and beamlines serving experiments such as ATLAS (particle detector), CMS (particle detector), ALICE (A Large Ion Collider Experiment), and LHCb. It interfaces with major projects like the Large Hadron Collider, the Proton Synchrotron complex, and international collaborations including Fermilab and DESY. The department provides expertise in accelerator physics, engineering, and controls to support experiments hosted by CERN and partner laboratories such as GSI Helmholtz Centre for Heavy Ion Research and KEK.

Overview

The Beams Department manages operation of injector chains and transfer lines feeding flagship facilities like the Large Hadron Collider, the Super Proton Synchrotron, and the Proton Synchrotron Booster. It delivers beam parameters required by experiments including intensity, energy, timing, and emittance while coordinating with projects such as High-Luminosity Large Hadron Collider and Compact Linear Collider. The department integrates expertise from groups formerly within AB Department (Accelerators and Beams), liaises with detector collaborations such as ATLAS Collaboration and CMS Collaboration, and supports test facilities linked to institutions like University of Oxford and École Polytechnique Fédérale de Lausanne.

History and Development

The modern Beams organization emerged from legacy accelerator efforts rooted in the founding of European Organization for Nuclear Research and milestones like commissioning of the Proton Synchrotron and the Super Proton Synchrotron. Its evolution traces through upgrades tied to the discovery programs of experiments such as UA1 and UA2, the construction of the Large Hadron Collider, and initiatives such as the LHC Injectors Upgrade and HL-LHC Project. The department built on collaborations with predecessors at CERN and partner laboratories including Brookhaven National Laboratory, Lawrence Berkeley National Laboratory, and SLAC National Accelerator Laboratory.

Organization and Structure

The department is organized into sections responsible for accelerator operation, beam physics, radio-frequency systems, vacuum and cryogenics, controls and instrumentation, and machine protection, coordinating with divisions such as Engineering Department (CERN), Technology Department (CERN), and Experimental Physics Department (CERN). Leadership interacts with international program offices behind projects like High-Luminosity Large Hadron Collider and governance bodies such as the CERN Council. Collaborations include university groups from University of Manchester, University of Cambridge, ETH Zurich, and consortia like the European Spallation Source partnership.

Accelerator Facilities and Beamlines

Facilities under Beams stewardship include the Linear Accelerator 4 (Linac4), Proton Synchrotron Booster, Proton Synchrotron, Super Proton Synchrotron, and transfer lines feeding the Large Hadron Collider. Test beam areas support detector R&D for experiments like LHCb and NA61/SHINE and collaborate with projects including ISOLDE and Antiproton Decelerator. The department maintains infrastructure for fixed-target experiments such as COMPASS and NA62, and works with specialized beamlines used by collaborations including CAST and OSQAR.

Operations and Beam Physics

Operational responsibilities cover beam commissioning, machine tuning, optics design, and performance optimization using codes and methods employed at CERN and partner centers like DESY and Fermilab. Beam physics teams interact with experiment collaborations such as ATLAS Collaboration to deliver luminosity goals for High-Luminosity Large Hadron Collider milestones, relying on diagnostics developed with universities like Imperial College London and University of California, Berkeley. Machine protection systems are coordinated with safety authorities and projects such as the LHC Machine Protection program and utilize instrumentation from groups including John Adams Institute.

Research, Upgrades, and Projects

The department leads R&D for upgrades including LHC Injectors Upgrade, High-Luminosity Large Hadron Collider, and studies toward future facilities such as Future Circular Collider and Compact Linear Collider. Research spans superconducting magnet tests linked to CERN Magnet Test Facility, radio-frequency innovations relevant to CERN Radio Frequency Group, beam dynamics modeling collaborating with SLAC National Accelerator Laboratory and Lawrence Berkeley National Laboratory, and plasma acceleration studies tied to partners like Ecole Polytechnique and Helmholtz Association. Funding and in-kind contributions come from member states and institutional partners such as CNRS, INFN, STFC, and national laboratories including TRIUMF.

Safety, Environmental and Technical Support

Safety management aligns with CERN-wide regulations overseen by governance bodies such as the CERN Safety Commission and coordinates with international standards referenced by organizations like IAEA and European Commission. Environmental monitoring and radiological protection are carried out alongside units such as the Radiation Protection Group (CERN), and technical support includes cryogenics worked with manufacturers and partners like Air Liquide and Siemens. The department collaborates with emergency services in Geneva and regulatory entities in Switzerland and France to ensure compliant operation of facilities such as the Large Hadron Collider and ancillary accelerators.

Category:European Organization for Nuclear Research