skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Superconducting magnetic shielding apparatus and method

Abstract

Disclosed is a method and apparatus for providing magnetic shielding around a working volume. The apparatus includes a hollow elongated superconducting shell or cylinder having an elongated low magnetic pinning central portion, and two high magnetic pinning end regions. Transition portions of varying magnetic pinning properties are interposed between the central and end portions. The apparatus further includes a solenoid substantially coextensive with and overlying the superconducting cylinder, so as to be magnetically coupled therewith. The method includes the steps passing a longitudinally directed current through the superconducting cylinder so as to depin magnetic reservoirs trapped in the cylinder. Next, a circumferentially directed current is passed through the cylinder, while a longitudinally directed current is maintained. Depinned magnetic reservoirs are moved to the end portions of the cylinder, where they are trapped.

Inventors:
Issue Date:
OSTI Identifier:
6233341
Application Number:
ON: DE83013193
Assignee:
ERA-08-036764; EDB-83-113017
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; MAGNETIC SHIELDING; DESIGN; CYLINDRICAL CONFIGURATION; MAGNETIC FLUX; SOLENOIDS; SUPERCONDUCTORS; CONFIGURATION; ELECTRIC COILS; ELECTRICAL EQUIPMENT; EQUIPMENT; SHIELDING; 420201* - Engineering- Cryogenic Equipment & Devices

Citation Formats

Clem, J.R. Superconducting magnetic shielding apparatus and method. United States: N. p., 1982. Web.
Clem, J.R. Superconducting magnetic shielding apparatus and method. United States.
Clem, J.R. Fri . "Superconducting magnetic shielding apparatus and method". United States.
@article{osti_6233341,
title = {Superconducting magnetic shielding apparatus and method},
author = {Clem, J.R.},
abstractNote = {Disclosed is a method and apparatus for providing magnetic shielding around a working volume. The apparatus includes a hollow elongated superconducting shell or cylinder having an elongated low magnetic pinning central portion, and two high magnetic pinning end regions. Transition portions of varying magnetic pinning properties are interposed between the central and end portions. The apparatus further includes a solenoid substantially coextensive with and overlying the superconducting cylinder, so as to be magnetically coupled therewith. The method includes the steps passing a longitudinally directed current through the superconducting cylinder so as to depin magnetic reservoirs trapped in the cylinder. Next, a circumferentially directed current is passed through the cylinder, while a longitudinally directed current is maintained. Depinned magnetic reservoirs are moved to the end portions of the cylinder, where they are trapped.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {7}
}