NDLI: Measurements of magnetic field pattern in a short LHC dipole model

Content Provider	IEEE Xplore Digital Library
Author	Bottura, L. Breschi, M. Schneider, M.
Copyright Year	2002
Abstract	The magnetic field in superconducting accelerator magnets has a fine structure with longitudinal periodicity. This periodic pattern, with period identical to the cable twist pitch, is originated by uneven current distribution within the cable. Here, the authors present results of measurements of the periodic pattern performed in an LHC dipole model. They report in particular the results obtained powering the magnet with simple current steps and typical operation cycles as will be used during accelerator operation. The main result of the analysis is the time variation of the amplitude of the periodic pattern, from which they infer the evolution of the current distribution in the cable. They discuss the dependence of the pattern amplitude on ramp and pre-cycle parameters.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1605
Ending Page	1608
Page Count	4
File Size	469592
File Format	PDF
ISSN	10518223
Volume Number	11
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic field measurement Large Hadron Collider Superconducting cables Power cables Superconducting magnets Accelerator magnets Current distribution Performance evaluation Pattern analysis Magnetic analysis
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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