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Technical Support Services
Provided by Beams (BE) Department
Group ABP - Accelerators and Beam Physics

The AB-ABP (Accelerators and Beam Physics) group is in charge of beam physics issues over the complete CERN accelerator chain from the sources to the LHC, including the organisation of machine developments and contribution to operation supervision.
It provides technical management and support for accelerators and transfer lines, from the source to the SPS exit, including LEIR, AD and its experimental area and ISOLDE.

Group BI - Beam Instrumentation
This group designs, builds, maintains and improves the diagnostics instruments that allow the observation of the particle beams and collision parameters of all CERN accelerators and transport lines with the precision required to diagnose, tune, operate and improve the installations.
Group CO - Controls
This group is responsible for the specification, design, procurement, integration, installation, commissioning and operation of the controls infrastructure for all CERN Accelerators, their transfer lines and the Experimental Areas. Support is also provided to the technical infrastructure services that rely on standard controls facilities provided by the group.
Group OP - Operation
This group is responsible for the operation of all CERN present and future Accelerators and their associated Experimental Areas.

During periods of operation the group is responsible for the safety and access in the installations. In addition, the groups’ responsibility covers the launch, supervision and co-ordination of interventions on the technical infrastructure.
Group RF - Radio-Frequency
The group is responsible for the accelerating and damping systems.
Provided by Engineering (EN) Department
Cooling & Ventilation CV
Operation, maintenance and improvement of the existing cooling systems, pumping stations, air conditioning installations and fluid distribution systems for the PS, SPS and LHC machines as well as experimental areas and the Computer Centre.
Completion of the design and construction work of cooling, ventilation and fluid distribution systems the LHC project, including new experimental areas (ATLAS, CMS, ALICE etc.). Adaptation of the cooling and ventilation systems of the PS, SPS, BOOSTER and LHC.
Thermal calculations and cooling studies for physics detectors.
Electrical Engineering EL
Operate, maintain, extend and renovate the network, analyse and make projections for CERN electrical energy consumption and manage relations with the energy suppliers.
The group is also in charge of making modifications and extensions to the network as required by new projects, in terms of project studies, equipment procurement, installation, supervision and commissioning.

Providing cable installations for accelerators and experiments.

Work Request
Handling Engineering HE
Provide transport and handling services for the technical infrastructure of CERN, accelerators and experiments. This includes the design, the tendering/procurement, the installation, the commissioning, the operation, the maintenance and decommissioning of standard industrial and custom built transport and handling equipment.

Lift Maintenance Planning
Industrial Controls ICE
The Controls Group in the Engineering Department develops solutions and provides support in the domain of large and medium scale industrial control systems as well as laboratory control systems and promotes their use. The support covers the experiments, the technical infrastructure systems as well as the accelerator systems.

The Electronics Group is to provide a local central service for PCB layout and industrialization (including related mechanics), to standardize design and production files, to maintain central electronic symbol libraries, to keep and maintain a database of qualified and validated subcontractors and to provide them with a single interface at CERN for this type of work.
Machines and Experimental Facilities group MEF
The Group is responsible for planning and coordinating all maintenance and installation activities in the CERN Accelerator Complex, providing support to the experiments using the CERN accelerators, during their preparation, integration, installation and operation, and for the design installation and maintenance of the secondary beam zones.
Mechanical & Materials Engineering MME
Provide to the CERN community specific engineering solutions combining mechanical design, production facilities and material sciences. This group owns, maintains and develops the 30 years old know-how on the mechanical construction of beam accelerators and physics detectors.
Sources, Targets and Interactions Group STI
Study of beam interactions with matter, aiming to apply its know-how to particle generation.The Group is in charge of the conceptual design, production, operation and maintenance of devices in the LHC injectors and the LHC machine (sources, targets, collimators, dumps etc…) as well as in the secondary beams.
Technical Support Services provided by General Infrastructure Services (GS) Department
ASEgroup, Access, Safety and Engineering tools
The ASE group provides the Organization's systems for personnel safety and access control. The group procures and supports the Organization's engineering, equipment data management tools and mechanical CAD systems. The group provides the GS Department with desktop computing, EDMS and Web support.
SEM group, Site Engineering and Management
The group provides and maintains the sites, buildings and underground civil engineering works of the Organization as well as the necessary logistics and stores services.
Information Technology services by (IT) Department
Welcome to Computing at CERN
Communication Systems
The CS group is responsible for all communication services in use at the laboratory. This includes networks and communication for data, voice and video.
Database and Engineering Services Group
Provides central database support for almost all activities of the laboratory iincluding support for the development, deployment and running of the core administrative applications that make up the Administrative Information Services (AIS).
Infrastructure services required for the database applications in the CERN Accelerator and Technical sector as well as the infrastructure on which CERN's Engineering Data Management Service (EDMS) is run.
Support of a wide range of Engineering software packages including tools for Mechanical, Electronic and Software Design. Support of Math tools, software development and documentation tools.
Internet Services Group
Supports a range of services for information exchange, personal and group communications, collaborative work, all based on the Web and the Internet.
Grid Deployment Group
The Grid Deployment group is responsible for deploying, operating, and supporting the LCG (LHC Computing Grid) service, and for coordinating the grid operations and management activity within the Enabling Grids for E-sciencE (EGEE) project.
Grid Support Group
The Grid Support group (GS) supports the LHC experiments in their usage of the WLCG distributed computing infrastructure (Worldwide LHC Computing Grid).
User and Document Services Group
Coordinates and maintains the general relations between the IT Department and the users.
Computing Account Registration
Helpdesk and User Support
Audiovisual and Collaborative Services is responsible recording lectures, events, VIP visits etc., for digitizing and publishing the material on the web and for all the activities concerning videoconferencing.
Technical Services provided by Physics (PH) Department
PH-ESE Group Electronics Systems for Experiments
The ESE group designs and maintains electronics systems and projects for the experiments at CERN and also supplies a series of electronics related services
PH-ESE Group CERN Electronics Pool
The CERN Electronics Pool has a wide range of modular electronics and measurement equipment available for short to medium term hire. The service is available to all CERN approved activities including experiments, support and research groups.
Detector Technology Group
The mandate of the PH-DT group comprises development, construction, operation and maintenance of particle detectors for the experiments at CERN. The group clusters common services and infrastructure which are at the benefice of all experiments at CERN, e.g. gas system support, thin film lab, silicon facility with bond lab, irradiation facilities, magnet support, B-field mapping, instrumentation and controls.
Experiment Computing
The computing support unit designs, develops and maintains common software for the physics experiments in close collaboration with the EP experimental groups, the CERN-IT Division and collaborating HEP Institutes.
SoFTware Development for Experiments
Storage of equipment
The PH/SMI Group is responsible for the storage of equipment and materiel for the PH Department, for
Keys and Locks and office removals.
Technical Support Services provided by Technology (TE) Department
Accelerator Beam Transfer group (ABT)
The ABT group is in charge of the design, development, construction, installation, exploitation and maintenance of injection and extraction related equipment
The group also conceives, studies and designs injection and extraction processes and systems in the accelerator complex, and beam transfer lines between accelerators and up to targets. It contributes to operational follow-up of beam transfer systems, and is in charge of the commissioning of the LHC transfer lines, injection and beam dumping systems together with their potential upgrades.
Cryogenics group (CRG)
CRG group is responsible of the design, construction, operation & maintenance of cryogenic systems for accelerators and detectors.
Electrical Power Converters group (EPC)
The group is responsible for design, procurement or construction, installation, commissioning, operation and maintenance of all power converters and static var compensators for the present and future accelerators, including experimental areas at CERN.
Machine Protection and Electrical Integrity group (MPE)
Support LHC operation and maintain state‐of‐the art technology for magnet circuit protection and interlock systems for the present and future accelerators, magnet test facilities and CERN hosted experiments.
Magnets, Superconductors and Cryostats (MSC)
Design, construction and measurements of superconducting and normal conducting Magnets for the CERN accelerator complex.

Design and construction of cryostats for magnets, SCRF cryomodules and other accelerator equipments.
Support to operation of the accelerators for magnets, current leads, operation of the magnet and cryostat facilities.
Development of associated technologies, namely superconductors, insulation and polymers, superconducting electrical devices and magnetic measurements for present and future accelerators
Vacuum, Surfaces and Coatings (VSC)
Design, construction, operation, maintenance and upgrade of high & ultra-high vacuum systems for Accelerators and Detectors.
Coatings, surfaces treatments, surface and chemical analysis for Accelerators and Detectors.
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