Persistent current distribution on the superconducting shield of the cioffi magnet

Autor:	E.O. Schulz-Dubois
Rok vydání:	1969
Předmět:	Physics Condensed matter physics Physics::Instrumentation and Detectors Magnet Shield Electromagnetic shielding General Physics and Astronomy Shielding effect General Materials Science Persistent current Superconducting magnet Critical field Current density
Zdroj:	Cryogenics. 9:194-200
ISSN:	0011-2275
DOI:	10.1016/0011-2275(69)90214-8
Popis:	The superconducting magnet attributed to Cioffi1 employs a shield of sheet superconductor. In this paper the shielding effect is considered in detail as due to the induced persistent current distribution on the shield. The current distribution on shields of appropriate geometries is evaluated from the electromagnetic boundary conditions. Examination of Cioffi's original shielding geometry reveals several spots of singularly high current density. Critical phenomena at these spots may account for irreversible breakdown of the shielding action. A class of novel magnet geometries is proposed where the current density on the shield is uniform. Magnets of these geometries should function reversibly up to the critical field of the shielding superconductor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::60dc5c86d8bd7ca63115a84cc9ac808d https://doi.org/10.1016/0011-2275(69)90214-8 Zobrazit plný text záznamu