Speaker
Mr
Laurent Jean Tavian
(CERN)
Description
Following recommendations of the recent update of the European strategy in particle physics, CERN has undertaken an international study of possible future circular colliders beyond the LHC. This study considers an option for a very high energy (100 TeV) hadron-hadron collider located in a quasi-circular underground tunnel having a circumference of 80 to 100 km. The synchrotron radiation emitted by the high-energy hadron beam increases of more than two orders of magnitude compared to the LHC. To reduce the entropic load on the superconducting magnets’ refrigeration system, beam screens are indispensable to extract the heat load at a higher temperature level.
After illustrating the decisive constraints of the beam screen’s refrigeration design, this paper presents a preliminary designing of the length of a continuous cooling loop comparing helium and neon, for different cooling channel geometries with emphasis on the cooling length limitations and the exergetic efficiency.
Author
Claudio Kotnig
(Graz University of Technology (AT))
Co-author
Mr
Laurent Jean Tavian
(CERN)
