Speaker
Claudio Kotnig
(Graz University of Technology (AT))
Description
The proton beams accelerated, bent and focussed in the FCC-hh will reach a centre of mass energy up to 100 TeV. During circulation each beam will emit synchrotron radiation and generate an image current, causing a heat transfer of about 31.4 W/m to each beam screen, which has to be extracted within a narrow temperature range (40 K – 60 K). Additionally the beam screen cooling system is supposed to shield the FCC thermally. The technical segmentation of the collider foresees continuously cooled sections of up to 10.4 km; throughout the entire section length, more than 700 kW of heat has to be discharged at low temperature level. A cryogenic system of this size not only has to work dependably, but also calls for a high efficiency design to enable the operation economically. The reliable and efficient cooling of the FCC-hh beam screen in all possible operational modes requires a solid basic design as well as well-matched components in the final arrangement without unreasonably high investment costs and controlling effort. This poster presents the preliminary conceptual design of the FCC-hh beam screen cooling system based on exergetic, technical and economic considerations.
Author
Claudio Kotnig
(Graz University of Technology (AT))
Co-author
Laurent Jean Tavian
(CERN)
