Optimization of a spectromicroscopy beamline at BESSY II

Christian Jung; Johannes Bahrdt; Uwe Flechsig; Markus R. Weiss

doi:10.1117/12.283977

3 November 1997 Optimization of a spectromicroscopy beamline at BESSY II

Christian Jung, Johannes Bahrdt, Uwe Flechsig, Markus R. Weiss

Proceedings Volume 3150, Gratings and Grating Monochromators for Synchrotron Radiation; (1997) https://doi.org/10.1117/12.283977
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

Citation Download Citation

Christian Jung, Johannes Bahrdt, Uwe Flechsig, and Markus R. Weiss "Optimization of a spectromicroscopy beamline at BESSY II", Proc. SPIE 3150, Gratings and Grating Monochromators for Synchrotron Radiation, (3 November 1997); https://doi.org/10.1117/12.283977

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