Polarized wiggler for NSLS X-ray ring

Author

Friedman, A. ; Zhang, X. ; Krinsky, S. ; Blum, E.B. ; Halbach, K.

Author_Institution

Nat. Synchrotron Light Source, Brookhaven Nat. Lab., Upton, NY, USA

fYear

1993

fDate

17-20 May 1993

Firstpage

1599

Abstract

We examine the properties of an elliptically polarized wiggler that will generate circularly polarized photons with an energy spectrum of 3-12 keV. The vertical wiggler magnetic field is produced by permanent magnets while the horizontal wiggler field is generated by electric coils capable of AC excitation. The radiation parameters of the wiggler are presented. Numerical values are calculated for radiation from the wiggler. A conceptual design for such a wiggler is discussed. We consider AC excitation of the wiggler to produce the time modulation of the elliptic polarization. The power dissipated in the vacuum chamber due to the eddy current is considered

Keywords

X-ray production; eddy currents; electromagnetic field theory; magnetic fields; vacuum apparatus; wigglers; 3 to 12 keV; NSLS; National Synchrotron Light Source; circular polarization; design; eddy current; electric coils; elliptically polarized wiggler; permanent magnets; power dissipation; vacuum chamber; Electromagnetic wave polarization; Laboratories; Light scattering; Magnetic field measurement; Optical polarization; Particle scattering; Permanent magnets; Soft magnetic materials; Undulators; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308547

Filename

308547