August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Cryostat Design of 230 MeV Superconducting Isochronous Cyclotron for Proton Therapy

Aug 30, 2017, 1:15 PM
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m D3 - Magnets for Other Medical and Biological Applications Wed-Af-Po3.04


Dr Jun Yoshida (Sumitomo Heavy Industries, Ltd.)


We have designed a 4 tesla superconducting isochronous cyclotron for proton therapy. Its yoke weight is about 65 tons, which is less than one third of our normal-conducting 230 MeV cyclotron. Application of superconducting wire to cyclotron can contribute to reduction of dimension, initial costs, power consumption and lead time. The superconducting coils using NbTi wire are conduction-cooled by four 4 K Gifford-McMahon cryocoolers. The superconducting coil assembly is supported by four horizontal straps and four vertical columns. We will report cryostat designs of structure, cooling and quench protection.

Submitters Country Japan

Primary author

Dr Jun Yoshida (Sumitomo Heavy Industries, Ltd.)


Mr Atsushi Hashimoto (Sumitomo Heavy Industries, Ltd.) Dr Takaaki Morie (Sumitomo Heavy Industries, Ltd.) Mr Yoshihiko Arakawa (Sumitomo Heavy Industries, Ltd.) Mr Hitoshi Mitsubori (Sumitomo Heavy Industries, Ltd.) Dr Hiroshi Tsutsui (Sumitomo Heavy Industries, Ltd.) Mr Takehisa Tsurudome (Sumitomo Heavy Industries, Ltd.) Mr Yukio Mikami (Sumitomo Heavy Industries, Ltd.)

Presentation materials