Magnet and cryostat configurations for a multi-port quadrupole array

Author

Green, M.A. ; Bangerter, R.O.

Author_Institution

Lawrence Berkeley Lab., CA, USA

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

1502

Lastpage

1505

Abstract

This report describes the results of a study of arrays of up to sixteen quadrupoles in a single cryostat surrounded by an induction accelerator that is used for accelerating high current heavy ion beams for fusion. Each quadrupole in the array can have a gradient of 72 T/m, when the quadrupole has a warm bore diameter of 90 mm. An array of sixteen quadrupoles can be made to fit into a round cryostat vacuum vessel with a diameter of 850 mm. If the number of quadrupoles in the array is reduced to nine, the outer diameter of the cryostat is 700 mm. It is proposed that the quadrupole array be conduction cooled using either a 4 K cryocooler or two phase liquid helium in pipes around the magnet array. The two-phase helium can be supplied to a string of multi-bore quadrupoles using a large refrigerator

Keywords

accelerator RF systems; collective accelerators; cooling; cryostats; ion accelerators; superconducting magnets; 4 K; 700 mm; 850 mm; 90 mm; conduction cooling; cryocooler; cryostat configurations; high current heavy ion beams acceleration; induction accelerator; induction linac; magnet array; multi-port quadrupole array; quench protection; refrigerator; round cryostat vacuum vessel; superconducting magnets; two phase liquid helium; warm bore diameter; Acceleration; Apertures; Boring; Helium; Ion beams; Linear particle accelerator; Particle beams; Phased arrays; Superconducting coils; Superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920060

Filename

920060