Conceptual Design of a 260 mm Bore 5 T Superconducting Curved Dipole Magnet for a Carbon Beam Therapy Gantry

被引：17

作者：

Caspi, S. ^{[1
]}

Arbelaez, D. ^{[1
]}

Felice, H. ^{[1
]}

Hafalia, R. ^{[1
]}

Robin, D. ^{[1
]}

Sun, C. ^{[1
]}

Wan, W. ^{[1
]}

Yoon, M. ^{[2
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] POSTECH, Pohang, Kyungbuk, South Korea

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2012年 / 22卷 / 03期

关键词：

Carbon therapy; curved dipole; gantry; superconducting magnet;

D O I：

10.1109/TASC.2011.2174568

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A conceptual design of curved superconducting magnet for a carbon therapy gantry has been proposed. The design can reduce the gantry's size and weight and make it more comparable with gantries used for proton therapy. In this paper we report on a combined function, 5 T, superconducting dipole magnet with a 260 mm bore diameter that is curved 90 degrees at a radius of 1269 mm. The magnet superimposes two layers of oppositely wound and skewed solenoids like windings, energized in a way that nulls the solenoid field and doubles the dipole field component. Furthermore, the combined architecture of the windings can create a selection of field terms that are off the near-pure dipole field. Combined harmonics such as a quadrupole and sextupole are needed to adjust the beam trajectory. Ways to adjust the field and beam trajectory, magnet size and assembly, structure and pre-stress are considered.

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