IPAC2011 - List of Authors (Motowidlo, L.)

Paper	Title	Page
THPC162	Possible Application of NbTi Wire with Artificial Pinning Centres for Insertion Devices	3272
	T. Holubek, S. Casalbuoni, S. Gerstl, A.W. Grau, D. Saez de Jauregui Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany M. Klaeser, T. Schneider FZ Karlsruhe, Karlsruhe, Germany L. Motowidlo SupraMagnetics, Inc., Plantsville, USA
	Superconductive insertion devices (IDs) allow higher fields for a given gap and period length compared to the classical permanent magnet IDs. This technological concept permits to increase the brilliance and/or the photon energy. The working horse for superconducting magnets are multifilament NbTi wires, which are nowadays also used for superconducting insertion devices. Even higher magnetic fields can be reached by using a conductor with enhanced critical current density. Here, we propose a possible application for superconducting undulators, wound with NbTi wire with artificial pinning centres, developed by SupraMagnetics, Inc. We report the critical current characteristic, Jc(B), of short wire measured in a liquid helium bath, and the load-line of a racetrack coil, designed to simulate the field configuration on the conductor as in a superconducting undulator. Based on the measured load-line we report the simulations of the magnetic field on axis and of the spectrum in a third generation light source of a possible undulator wound with a wire having similar properties of the measured one.

Paper

Title

Page

Possible Application of NbTi Wire with Artificial Pinning Centres for Insertion Devices

3272

T. Holubek, S. Casalbuoni, S. Gerstl, A.W. Grau, D. Saez de Jauregui
Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
M. Klaeser, T. Schneider
FZ Karlsruhe, Karlsruhe, Germany
L. Motowidlo
SupraMagnetics, Inc., Plantsville, USA

Superconductive insertion devices (IDs) allow higher fields for a given gap and period length compared to the classical permanent magnet IDs. This technological concept permits to increase the brilliance and/or the photon energy. The working horse for superconducting magnets are multifilament NbTi wires, which are nowadays also used for superconducting insertion devices. Even higher magnetic fields can be reached by using a conductor with enhanced critical current density. Here, we propose a possible application for superconducting undulators, wound with NbTi wire with artificial pinning centres, developed by SupraMagnetics, Inc. We report the critical current characteristic, Jc(B), of short wire measured in a liquid helium bath, and the load-line of a racetrack coil, designed to simulate the field configuration on the conductor as in a superconducting undulator. Based on the measured load-line we report the simulations of the magnetic field on axis and of the spectrum in a third generation light source of a possible undulator wound with a wire having similar properties of the measured one.