Axial variations in the magnetic field of superconducting dipoles [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: Pages: (5 pages) : digital, PDF file
Additional Creators:: Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

Access Online

www.osti.gov

Availability

Finding items...

Restrictions on Access:

Free-to-read Unrestricted online access

Summary:

Periodic variations in the field along the axis have been observed in a large number of superconducting dipoles. Both long and short versions of the SSC magnet have been examined as well as prototypes for the RHIC accelerator and coils from the CBA and ISABELLE projects. This field oscillation is present in all the components of the field. The period of the longitudinal pattern was found to match the conductor transposition length over a wide range of pitches. The amplitude of variation increases with time spent at high field and its decay has a complex time dependence. Unbalanced currents in the individual strands of the cable appear to be the cause of this effect and may also give rise to the unusually high sextupole drift observed near injection field in most dipoles.

Report Numbers:

E 1.99:bnl-47596
E 1.99: conf-920331--74
conf-920331--74
bnl-47596

Subject(s):

Particle Accelerators

Other Subject(s):

Note:

Published through SciTech Connect.
01/01/1992.
"bnl-47596"
" conf-920331--74"
"DE93014322"
4. international industrial symposium on the Super Collider, New Orleans, LA (United States), 4-6 Mar 1992.
Sampson, W.B.; Ghosh, A.K.; Robins, K.E.

Funding Information:

AC02-76CH00016

View MARC record | catkey: 14697599