Title
| Quench Heater Technology for HL-LHC Superconducting Accelerator Magnets |
Author(s)
| Scheuerlein, Christian (CERN) ; De Oliveira, Rui (CERN) ; Piccin, Roland (CERN) ; Meuter, Florian (CERN) ; Glogiewicz, Fabian (CERN) ; Katzer, Balduin (KIT, Karlsruhe) ; Thetter, Tobias (CERN) |
Publication
| 2024 |
Number of pages
| 5 |
In:
| IEEE Trans. Appl. Supercond. 34 (2024) 4701105 |
DOI
| 10.1109/TASC.2023.3346837
|
Subject category
| Accelerators and Storage Rings |
Accelerator/Facility, Experiment
| CERN LHC |
Project
| CERN HL-LHC |
Abstract
| Quench heaters for the active protection of superconducting magnets are large flexible circuits that are produced in a photolithographic process. The HL-LHC quench heater base material, the circuit production process and the qualification tests are described. For potential future use as interlayer quench heater, a Cu coating with a Ta diffusion barrier has been developed that can resist the high temperatures needed for coil reaction. The application of a coverlay enables dielectric tests at voltages that approach the specified breakdown strength of the polyimide insulation. Potential further improvements of heater performance and robustness are discussed. |
Copyright/License
| publication: © 2024-2025 The Authors (License: CC-BY-4.0) |