Title :
Energy extraction for the LHC superconducting circuits
Author :
Dahlerup-Petersen, K. ; Rodriguez-Mateos, E. ; Schmidt, R. ; Sonnernann, F.
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
The superconducting magnets of the LHC will be powered in about 1700 electrical circuits. The energy stored in circuits, up to 1.3 GJ, can potentially cause severe damage of magnets, bus bars and current leads. In order to protect the superconducting elements after a resistive transition, the energy is dissipated into a dump resistor installed in series with the magnet chain that is switched into the circuit by opening current breakers. Experiments and simulation studies have been performed to identify the LHC circuits that need energy extraction. The required values of the extraction resistors have been computed. The outcome of the experimental results and the simulation studies are presented and the design of the different energy extraction systems that operate at 600 A and at 13 kA is described
Keywords :
accelerator RF systems; beam handling equipment; busbars; ion accelerators; ion beams; nuclear electronics; particle beam diagnostics; particle beam extraction; superconducting magnets; synchrotrons; 1.3 GJ; 13 kA; 600 A; LHC superconducting circuits; bus bars; current breakers; current leads; dump resistor; electrical circuits; energy extraction; magnet chain; resistive transition; severe magnet damage; superconducting elements; superconducting magnets; Bars; Circuit simulation; Computational modeling; Large Hadron Collider; Magnetic circuits; Magnetic switching; Protection; Resistors; Superconducting magnets; Switching circuits;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988140
