Elliptically polarizing insertion devices at BESSY II
Abstract
Two APPLE II type twin undulators are installed at BESSY II. They can either be operated in a chicane mode providing variable polarization at high switching rates or in a combined mode using a modulator for phase adaption. Studies on magnet block inhomogeneities have started to further improve the field quality and to reduce the effort on shimming.
- Publication:
-
Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- July 2001
- DOI:
- Bibcode:
- 2001NIMPA.467...21B