Conveners
Technical Infrastructures: Geodesy and survey
- Andreas Wieser
Technical Infrastructures: RF Points for FCC-ee
- Jean-Philippe Tock (CERN)
Technical Infrastructures: Electricity and Cooling
- Ingo Ruehl (CERN)
Technical Infrastructures: Transport & logistics, Safety
- Christian Prasse
In short, Geodesy deals with two main topics. (1) The determination of the position of (all) objects on the Earth or in its vicinity. (2) The determination of the gravity field and its geometry. Since the beginning of mankind those tasks serve science and society. The first scientific question concerned the shape of the Earth, and the first societal application concerned the rational...
Building the FCC tunnel will require outstanding engineering expertise from all domains involved. Several anticipated challenges will be comparable only to those encountered during the construction of the longest existing tunnels like the Gotthard Base Tunnel put into operation in 2016. With its length of 57 km it is still the longest railroad tunnel in the world. Its length, the complex...
For the construction and maintenance of large-scale infrastructure such as the Gotthard Base Tunnel or the CERN-FCC, it is vital to take into account the influence of the varying gravity field, because most geodetic measurements are referring to the local plumb lines and equipotential surfaces, deviating from purely geometrical positioning by e.g. GNSS.
The so-called Geoid, an equipotential...
The presentation will discuss the reasons why coordinate reference systems (CRSs) are needed for building and operating FCC. It will briefly summarize CERN's coordinate reference systems' diversity and historical heritage as well as the characteristics of the optimal coordinate reference system for the FCC. Additionally, key aspects for the implementation of the reference systems through...
Building the FCC tunnel and installing each component of the machine at the intended location will be a challenging task relying notably on the quality and accuracy of the geodetic infrastructure. Before that, methods, tools and software must be developed to respond to the needs of the different parties taking part in the FCC feasibility studies.
This presentation will first cover the...
The base line for the RF system of FCC-ee is a combination of 400 and 800 MHz systems operating at 4.5 and 2 K respectively. The system is designed to evolve for the different working points of the machine. Taking into account constraints from beam physics, placement and infrastructure, we have identified two straight sections to house the cryomodules. This presentation outlines the...
The Future Circular Electron–Positron Collider (FCC-ee) will be 91 km long and operate in a top-up mode where new beams are continuously injected into the collider. For this purpose, the collider tunnel will also house a 91 km long booster accelerator. During its life cycle, the FCC-ee will operate with different energies to study Z, W, and H bosons and the top quark. The Future Circular...
Now entering its phase II, the FCC Study capitalizes on the work of the Conceptual Design Report to refine its results, to serve as input for the next ESPP Update in 2026/2027.
Considering recent adjustments that have been made to the accelerator conceptual design, the architecture of the cryogenic systems for both FCC-ee and -hh machines is currently under revision and shall be...
The FCC-ee will be the largest accelerator ever built with kilometers of different accelerator devices. The identification of the main loads is crucial for designing the electricity infrastructure and for evaluating its energy consumption. An update of the FCC power demand is ongoing with the evaluation of its annual energy consumption depending on the machine configurations. The next step is...
The electrical infrastructure for the Future Circular Collider will be composed by a multi-layer transmission and distribution network covering all the power needs of the accelerator.
The study for the network considers as main inputs the known users’ requirements and the target load figures of FCC-ee, the power availability of the electrical grid of the surrounding area and its long-term...
The eight point configuration of the FCC together with the more precise definition of the RF areas are relevant input which modifies important factors of the cooling and ventilation baseline design. This presentation will describe the main challenges and present the current CV baseline parameters. It will also analyse the cooling infrastructure modification needed to pass from FCC-ee to FCC-hh...
Logistic of equipment and personnel is a major aspect during the assembly, installation but also operation of the future FCC. The transport and handling tools and means need to be studied in details, in an early phase, in order to control the associated costs as well as the duration of interventions.
The presentation will give an overview on the requirements for the special vehicles...
Fraunhofer-IML has analyzed several logistics and handling aspects during the FCC Conceptual Design phase. As part of the feasibility study phase, the key accelerator parameters are being redefined and the existing basic concepts for logistics and material handling vehicles will thus be reviewed and developed in more detail. Within this phase, the studies will focus on three main areas of...
The Future Circular Collider is an accelerator research facility with unprecedented dimensions, located in a tunnel with 91 km circumference in a depth of around 200 metres underground. Safety hazards such as ionising radiation, fire, cryogenic gas releases, and oxygen deficiency paired with complicated emergency access and evacuation require solutions for risk mitigation already embedded in...
The FCC underground infrastructure presents important challenges in terms of human intervention and evacuation in case of an emergency. Both, time and distances required to get to or evacuate areas far from access shafts are large. Employing robots can mitigate the risk linked to this infrastructure.
Thus, usage of robots are an inherent part of the global FCC safety concept. Their main...
