Conveners
Technical Infrastructure: Safety
- Benoit Delille (CERN)
Technical Infrastructure: Transport, logistic and Survey
- Ingo Ruehl (CERN)
Technical Infrastructure: Layout optimisation and services
- Klaus Hanke (CERN)
Technical Infrastructure: RF and Cryogenics
- Frank Gerigk (CERN)
Technical Infrastructure: Utilities
- Jean-Paul Burnet (CERN)
In view of the FCC feasibility study report, the Safety WP is tasked with the editorial of a Safety Concept. This report will detail all the risks associated with the future activities of the FCC-ee machine during the civil engineering construction, installation and operation phases.
The outcome of the safety concept leans of the results of several safety studies performed by the HSE Unit and...
The safety systems for the protection of personnel in the CERN accelerator complex are designed, installed, and maintained by the EN-AA group. The group relies on industrial partners and supports, whenever possible, off-the-shelf solutions complemented with specific studies and developments when needed. This talk gives an overview of the safety systems required by the FCC safety concept, such...
The radiation protection studies shall ensure that the proposed design of FCCee is compatible with the objectives and constraints for radiological protection of the personnel and the environment. An assessment of the radiological parameters, such as the levels of prompt and residual radiation and activation, allows to evaluate their impact during the operation and maintenance of the...
The availability and safety of the Future Circular Collider (FCC) are critical factors for its operation. To enhance these parameters cost-effectively, the FCC Robotic System (FCCRS) has been conceived and it is under development during the last years. The FCCRS comprises a Remote Maintenance and Inspection System (RMIS) and a Survayance and Emergency Shuttle (SES). This system will...
The talk will provide an overview of the model identified to transport people from the surface to their place of work in the tunnel and vice versa.
The transport concept is currently based on personnel lifts linking the surface to the underground facilities and bespoke automated vehicles running in the accelerator tunnel and the service caverns.
During the presentation, the safety...
The presentation will provide an update on the concepts for the people transport vehicle and the magnet transport vehicle. It will also include new information on the logistics study for the transport and installation of the collider and booster ring in the underground tunnel.
The concept for the people transport vehicle is specifically designed to navigate the narrow tunnel of the FCC. The...
Building the FCC tunnel, installing and aligning each component and experiment of the machine at the intended location will be a challenging task relying notably on the quality and accuracy of the geodetic infrastructure.
In collaboration with ETHZ, HEIG-VD, IGN and Swisstopo the development of the new geodetic infrastructure for the FCC has continued over the past year. Efforts were...
To reach integrated luminosity goals, the FCC-ee must be operational for minimum 80% of the scheduled 185 physics days each year. For comparison, the LHC achieved 77% in Run 2, 2016-2018. There are additional challenges in operation and maintenance of the FCC-ee due to its scale, complexity and ambitious technical objectives. Availability is therefore a significant risk to physics...
Follow up the up-to-date requirements from the different stakeholders (cooling, HVAC, electrical supply, transport, safety systems, and machine systems). The integration team classified and optimized the space which will be used in the underground infrastructure. The 3D integration models were updated with the new occupation requests on the machine tunnel and the arcs, experimental caverns,...
At this stage of the feasibility study of FCC, few challenges were identified, and the electrical network has a role to play in improving them.
Indeed, the study highlighted the need to use as little space as possible: on surface sites to limit the environmental impact, but underground as well to limit the civil engineering cost. In this sense, the electrical network is designed to reduce...
The talk provides the latest advancements in evaluating optimal powering solutions for the FCC-ee.
To achieve a global optimum which balances Capital and Operation Expenditures (CAPEX and OPEX) a holistic approach is needed. Several equipment designs such as cables, power converters, cooling and ventilation systems, magnet, and alcoves volumes are tightly related and CAPEX+OPEX...
Following up the updates on RF section studies, where we have a new design of the 400MHz and 800 MHz cryogenics modules. The integration studies are considering boundaries in term of space limitations and design requirements, such as underground infrastructures (access shaft, connection tunnels, etc.), straight section length, cryogenics modules length, general services (electrical, cooling...
The RF systems of the FCC-ee are expected to be the primary consumers of power and energy. With an estimated power consumption exceeding 100 MW, it is crucial to design an efficient and reliable powering system that can deliver power from the AC network to the klystron gallery.
A critical component of the RF powering system is the main power converter. The use of a centralized high-voltage...
The water cooling system of the FCC is in charge of extracting the heat produced at magnets, cryogenic systems, absorbers, electronics, etc. This presentation provides an overview of the current status of the cooling systems, covering aspects such as thermal load management, thermal load variation over the year and for the different stages of the FCC-ee. The presentation covers also...
The ventilation system of the FCC includes the supply, treatment, and extraction of air in the accelerator complex, including the Arc Tunnel, Alcoves and the caverns and galleries in the Experimental, RF and Technical Points. The air supplied at the FCC must meet safety, humidity and temperature requirements, among others. The ventilation system is also used to extract part of the thermal load...
Starting from the status presented at the FCC Week of 2023, the network concept has now progressed and been updated on the latest usersโ requirements and the latest outcomes of the studies.
Some axis of optimization have been explored and analysed to find the optimum result for the high voltage transmission level and the location of the main substations; the operational scenarios and...
In recent years, with the advent of power electronics, DC networks have emerged as a promising solution for the distribution of electrical energy. They offer advantages in terms of efficiency, controllability, volume reduction, and integration of energy storage. Given the specific needs of the FCC, DC networks could be utilized to supply power to specific machine components.
On a larger...
