Optimization of Superconducting Focusing Quadrupoles for the HighCurrent Experiment
The Heavy Ion Fusion (HIF) program is progressing through a series of physics and technology demonstrations leading to an inertial fusion power plant. The High Current Experiment (HCX) at Lawrence Berkeley National Laboratory is exploring the physics of intense beams with high line-charge density. Superconducting focusing quadrupoles have been developed for the HCX magnetic transport studies. A baseline design was selected following several pre-series models. Optimization of the baseline design led to the development of a first prototype that achieved a conductor-limited gradient of 132 T/m in a 70 mm bore, without training, with measured field errors at the 0.1% level. Based on these results, the magnet geometry and fabrication procedures were adjusted to improve the field quality. These modifications were implemented in a second prototype. In this paper, the optimized design is presented and comparisons between the design harmonics and magnetic measurements performed on the new prototype are discussed.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of High EnergyPhysics, Lawrence Livermore National Laboratory, Massachusetts Instituteof Technology
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 885234
- Report Number(s):
- LBNL-58871; R&D Project: 454001; BnR: KA1502010; TRN: US0603835
- Resource Relation:
- Conference: Applied Superconductivity Conference,Jacksonville, FL, October 3-8, 2004
- Country of Publication:
- United States
- Language:
- English
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