A Novel Magnet Design Using Coated Conductor for Spiral Sector FFAG Accelerators

Author

Goda, Keisuke ; Amemiya, N. ; Nakamura, T. ; Mori, Yojiro ; Ogitsu, T. ; Kurusu, T. ; Yoshimoto, Masahiko

Author_Institution

Kyoto Univ., Kyoto, Japan

Volume

24

Issue

3

fYear

2014

fDate

Jun-14

Firstpage

1

Lastpage

5

Abstract

A superconducting coil-dominated magnet was designed for a fixed-field alternating gradient (FFAG) accelerator for carbon cancer therapy. The magnet consists of deformed pancake coils with negative bends and a saddle-shape coil with negative bends wound with coated conductors. The minimum flat-wise bending radius and the maximum edge-wise bending strain were considered when designing the coils. The field error was evaluated by using the integrated magnetic field along the beam direction and the local k + 1 value to optimize the shapes of the coils.

Keywords

accelerator magnets; bending; superconducting coils; superconducting magnets; beam direction; carbon cancer therapy; coated conductors; deformed pancake coils; edge-wise bending strain; field error; fixed-field alternating gradient accelerator; flat-wise bending radius; integrated magnetic field; saddle-shape coil; spiral sector FFAG accelerators; superconducting coil-dominated magnet; Accelerator magnets; Coils; Conductors; Magnetic fields; Shape; Strain; Superconducting magnets; Accelerator; carbon cancer therapy; coated conductor; magnet; superconductors;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2013.2287716

Filename

6649972