Thermal design of a high gradient quadrupole for the LHC interaction regions

• Published in: IEEE transactions on applied superconductivity Vol. 7; no. 2; pp. 578 - 581
• Main Authors: Huang, Y., Kerby, J., Mazur, P.O., Peterson, T.J., Zlobin, A.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.1997; Institute of Electrical and Electronics Engineers
• Subjects: Cable insulation; Cooling; Cyclic accelerators and storage rings; Exact sciences and technology; Experimental methods and instrumentation for elementary-particle and nuclear physics; Iron; Large Hadron Collider; Magnets; Nuclear physics; Physics; Superconducting cables; Superconducting coils; Temperature; Thermal resistance; Superconducting magnets; LHC collider; Instrumentation; Heat transfer; Cryogenics
• ISSN: 1051-8223
• DOI: 10.1109/77.614570

The LHC high gradient quadrupole coils are subject to a continuous heat load due to the beam-induced energy deposition during operation. All heat deposited in the coil must be removed so that the magnets will remain in a superconducting state. The quadrupole magnets are designed to be cooled with stagnant pressurized He II. This paper summarizes the heat flow analyses from the insulated coil to the boiling saturated He II for the LHC interaction region quadrupoles. The effects of cable surface heat flux and cooling channel heights on the thermal characteristics of the magnets are studied. He II heat exchanger designs, arranged internally and externally are compared.