Conceptual magnet design for an iron-free colliding beam accelerator
Superconducting accelerator magnets usually have magnetic iron yokes to obtain maximum magnetic fields and to limit stray fields. However, the iron is expensive and heavy. The smaller size and weight of an iron-free magnet can result in lower magnet and refrigeration costs. However in a colliding beam accelerator the stray field from one ring produces aberrations in the field in the other. A way to eliminate this mutual interference is to surround each magnet with a coil that exactly cancels the field from the other ring magnet. This is expensive in terms of superconductor requirements. However the cancellation of the external dipole field component is unnecessary. Only a small amount of superconductor is required for cancellation of the higher-order field-aberration components. Parameters for the iron-free magnet concept are investigated, and a preliminary conceptual design for an accelerator is presented.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5610055
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. NS-30:4
- Country of Publication:
- United States
- Language:
- English
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