The superconducting extraction magnet system EMC2 for the AGOR cyclotron

Author

Knoopers, H.G. ; Krooshoop, H.J.G. ; Kate, H. H J Ten ; Pieterman, K. ; Dam, J.A.M.

Author_Institution

Appl. Superconductivity Centre, Twente Univ., Enschede, Netherlands

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2022

Lastpage

2025

Abstract

A new superconducting extraction magnet system EMC2, has recently been installed in the AGOR cyclotron. It consists of two almost identical and slightly bent modules to accommodate the curved extraction beam. The coil system of each module consists of three coils located symmetrically around the median- plane, providing a main dipole field, a gradient field and a dipole correction field. The coil system is indirectly cooled by means of liquid helium flowing through channels located in the upper and lower part of both modules. In order to reduce the dissipation in the 4 K region due to beam losses, a 20 K radiation shield has been installed. Positioning of the extraction system to select a certain beam trajectory is provided by a guiding and feed-through system. This paper deals with the design and manufacturing of the superconducting and cryogenic parts of the EMC2 extraction system and the results of a successful test are presented

Keywords

beam handling equipment; beam handling techniques; cyclotrons; ion accelerators; superconducting magnets; 20 K; 4 K; AGOR cyclotron; EMC2; EMC2 extraction system; beam losses; coil system; cryogenic parts; curved extraction beam; radiation shield; superconducting extraction magnet system; Acceleration; Assembly systems; Cyclotrons; Helium; Magnetic separation; Superconducting coils; Superconducting magnets; Superconductivity; System testing; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305664

Filename

305664