2011 Particle Accelerator Conference - List of Keywords (permanent-magnet)

Paper	Title	Other Keywords	Page
TUP231	Applications of Textured Dysprosium Concentrators in Ultra-Short Period Insertion Devices	undulator, insertion, insertion-device, FEL	1256
	A.Y. Murokh, R.B. Agustsson, P. Frigola RadiaBeam, Santa Monica, USA O.V. Chubar, V. Solovyov BNL, Upton, Long Island, New York, USA
	The next generation light sources require development of the insertion devices with shorter periods and higher peak field values, well beyond the presently available designs limited by magnetic properties of conventional materials. Dysprosium (Dy) is a rare earth metal with unique ferromagnetic properties below 90 K, including saturation inductance above 3.4 Tesla. However, due to the high magnetic anisotropy of Dy, such a high level of magnetization can only be realized when the external field lies in the basal plane. This requirement is partially satisfied in the textured dysprosium presently under development at RadiaBeam and BNL. Textured Dy development status is discussed, as well as potential applications as field concentrators in the insertion devices, with particular emphasis on the next generation of cryogenically cooled short period hybrid undulators.

Paper

Title

Other Keywords

Page

TUP231

Applications of Textured Dysprosium Concentrators in Ultra-Short Period Insertion Devices

undulator, insertion, insertion-device, FEL

1256

A.Y. Murokh, R.B. Agustsson, P. Frigola
RadiaBeam, Santa Monica, USA
O.V. Chubar, V. Solovyov
BNL, Upton, Long Island, New York, USA

The next generation light sources require development of the insertion devices with shorter periods and higher peak field values, well beyond the presently available designs limited by magnetic properties of conventional materials. Dysprosium (Dy) is a rare earth metal with unique ferromagnetic properties below 90 K, including saturation inductance above 3.4 Tesla. However, due to the high magnetic anisotropy of Dy, such a high level of magnetization can only be realized when the external field lies in the basal plane. This requirement is partially satisfied in the textured dysprosium presently under development at RadiaBeam and BNL. Textured Dy development status is discussed, as well as potential applications as field concentrators in the insertion devices, with particular emphasis on the next generation of cryogenically cooled short period hybrid undulators.