First results of the circularly polarized undulator beamline at BESSY II

Weiss, M. R.; Sawhney, K. J. S.; Follath, R.; Mertins, H.-Ch.; Scha¨fers, F.; Frentrup, W.; Gaupp, A.; Scheer, M.; Bahrdt, J.; Senf, F.; Gudat, W.
June 2000
AIP Conference Proceedings;2000, Vol. 521 Issue 1, p134
Academic Journal
A beamline for circularly polarized radiation from a Sasaki type elliptical double undulator has been recently commissioned at BESSY-II. The PGM (Plane Grating Monochromator) based beamline works with collimated light and employs only one set of optical elements for steering and monochromatising the two (circularly) polarized, angularly separated, beams. The first commissioning results are presented here to illustrate the capabilities of this undulator-beamline concerning photon flux, photon energy resolution and polarization characteristics. © 2000 American Institute of Physics.


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