Superconducting fast cycling magnets of the Nuclotron

Author

Baldin, A.M. ; Agapov, N.N. ; Averichev, A. ; Donyagin, A.M. ; D´yachkov, E.I. ; Khodzhibagiyan, H.G. ; Kovalenko, A.D. ; Makarov, L.G. ; Matyushevsky, E.A. ; Smirnov, A.A.

Author_Institution

JINR, Dubna, Russia

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

875

Lastpage

877

Abstract

The new superconducting heavy ion synchrotron-Nuclotron was put into operation at the Laboratory of High Energies. The maximum design energy is 6 GeV/u. There are 160 pulsed SC magnets with a "cold" iron yoke and a hollow superconductor winding in the ring. A magnetic field of 2 T is provided under a supply current of 6 kA. The magnets were tested under a cycle dB/dt=4 T/s, B=2 T, and a ramp rate f=1.0 Hz. A two-phase helium flow was chosen as a coolant. The Nuclotron "cold" mass is about 80 tons. The cryogenic supply system capacity is 4.8 kW at 4.5 K. The total running time of the Nuclotron reached 1100 hours after the last run in March 1994.<>

Keywords

accelerator magnets; cooling; ion accelerators; superconducting device testing; superconducting magnets; synchrotrons; 1 Hz; 1100 h; 2 T; 4.5 K; 4.8 kW; 6 kA; Laboratory of High Energies; Nuclotron; cold iron yoke; cryogenic supply system capacity; hollow superconductor winding; magnet testing; magnetic field; pulsed semiconductor magnets; ramp rate; superconducting fast cycling magnets; superconducting heavy ion synchrotron; two-phase helium flow coolant; Accelerator magnets; Apertures; Cooling; Ion accelerators; Iron; Magnetic fields; Steel; Superconducting cables; Superconducting magnets; Wire;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402687

Filename

402687