VUV and soft X-ray radiometry at the laboratory of PTB at the Berlin storage ring BESSY

Details VUV and soft X-ray radiometry at the laboratory of PTB at the Berlin storage ring BESSY VUV and soft X-ray radiometry at the laboratory of PTB at the Berlin storage ring BESSY

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988spie..982..326k&link_type=abstract

IN: X-ray instrumentation in astronomy II; Proceedings of the Meeting, San Diego, CA, Aug. 15-17, 1988 (A89-40276 17-35). Bellin

Astronomy and Astrophysics

Astronomy

Radiometers, Spectrum Analysis, Storage Rings (Particle Accelerators), Ultraviolet Radiation, X Rays, Hollow Cathodes, Laser Plasmas, Quantum Efficiency, Radiant Flux Density, Schottky Diodes, Spectral Emission

Scientific paper

The Berlin electro-storage ring BESSY can be used as a primary source standard to establish a spectral emission scale. The uncertainty is about 0.23 percent in the NIR and increases to about 2 percent in the soft-X-ray region at 5 keV. At the radiometric laboratory of the Physikalisch-Technische Bundesanstalt (PTB) at BESSY, special beamlines have been built to calibrate transfer-source standard. Presently laser-produced plasmas and high-current hollow-cathode sources are investigated in respect of their use as transfer-source standards. Si(Li) detectors are calibrated using undispersed synchrotron radiation; solid-state diodes are calibrated as transfer-detector standards by comparison with the Si(Li) detectors. The characterization of optical components can be performed using a reflectometer operating in the 5-34-nm range.

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