Reference : Bulk high-temperature superconducting hollow cylinders used for magnetic shielding: e...
Scientific congresses and symposiums : Poster
Engineering, computing & technology : Materials science & engineering
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/2268/203419
Bulk high-temperature superconducting hollow cylinders used for magnetic shielding: effect of an initial trapped field on the shielding performances.
English
Wera, Laurent mailto [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Dép. d'électric., électron. et informat. (Inst.Montefiore) >]
Fagnard, Jean-François [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE) >]
Hogan, Kevin [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques >]
Vanderheyden, Benoît [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Electronique et microsystèmes >]
Vanderbemden, Philippe [Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques >]
9-Nov-2016
No
International
1st Asian ICMC - CSSJ 50th Anniversary Conference
Du 8 au 10 novembre 2016
Kanazawa
Japan
[en] Magnetic shielding ; Magnetic field ; Magnetic measurement
[en] Bulk High-Temperature Superconductors (HTS) can be used as efficient passive magnetic shields with performances exceeding those of conventional ferromagnetic materials. The most common geometry for a superconducting shield is a bulk hollow cylinder. In this work, we investigate the magnetic shielding properties when the tube is not in the virgin state. Such a situation happens in practice when the tube has been initially subjected to a first magnetic field. The induced superconducting currents that are flowing in the tube generate a trapped magnetic moment which may deteriorate the shielding of a second field. Here we study experimentally how an initial trapped moment affects the shielding of a magnetic field, when they are both perpendicular to each other. In particular, we focus on the effect of an axial trapped moment on the transverse shielding performances and on the effect of a transverse trapped field on the axial or the transverse shielding performances. Finally, we show how the pristine state of the tube can be restored when applying an external field of adequate amplitude. The consequence for practical applications is that it is possible to recover shielding properties similar to those obtained in the virgin state without heating up the shield above its critical temperature TC.
http://hdl.handle.net/2268/203419

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
Poster_ICMC2016_LW_final.pdfLandscape A0 formatAuthor postprint1.3 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.