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Proceedings Paper

Optimization of a spectromicroscopy beamline at BESSY II
Author(s): Christian Jung; Johannes Bahrdt; Uwe Flechsig; Markus R. Weiss
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Paper Abstract

For the high brilliance synchrotron radiation source BESSY II a couple of systems performing microscopy and spectromicroscopy at both high spatial and high energy resolution are planned or already under construction. The desired spatial resolution is in the nm-range, and thus monochromators are required which conserve the brilliance of the source throughout the beamline onto the analysed area. To serve the ultrahigh-resolution spectromicroscope SMART, a Petersen monochromator will be installed at an insertion device of 49 mm period length. When operated in highest spatial resolution mode, the field of view of the microscope is about 5 jtm in diameter. To optimize the photon flux density in the microscopes field of view, we studied the performance of the Petersen monochromator for various horizontal demagnification factors. The resulting optical layout produces a monochromatic image of the undulator source on the sample surface, which has a horizontal size of about 9 pm full width at half maimum. The vertical size of 5itm is determined by the exit slit width.

Paper Details

Date Published: 3 November 1997
PDF: 10 pages
Proc. SPIE 3150, Gratings and Grating Monochromators for Synchrotron Radiation, (3 November 1997); doi: 10.1117/12.283977
Show Author Affiliations
Christian Jung, BESSY GmbH (Germany)
Johannes Bahrdt, BESSY GmbH (Germany)
Uwe Flechsig, BESSY GmbH (Germany)
Markus R. Weiss, BESSY GmbH (Germany)

Published in SPIE Proceedings Vol. 3150:
Gratings and Grating Monochromators for Synchrotron Radiation
Wayne R. McKinney; Christopher A. Palmer, Editor(s)

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