Tasks
Utilisation of synchrotron radiation in the UV, EUV, VUV, and X-ray spectral range for basic and applied metrological tasks with
main focus on radiometry:
- Realisation of radiometric units by using the primary source standard BESSY II as calculable source of synchrotron radiation according
to Schwinger's theory and cryogenic radiometers as primary detector standards
- Calibration regarding radiometric measurands for dissemination of the units by transfer sources or transfer detectors
- Characterisation and quality assurance of optical components and assembled systems from UV to X-ray, in particular for EUV lithography
- Development and application of reference-standard-free X-ray fluorescence analysis
- Comparative investigations into the equivalence of the realisation of radiometric units by synchrotron radiation and by radioactive
standards in the X-ray spectral range
- Operation of the storage-ring laboratory of PTB at BESSY II
- Design and construction of the instrumentation of the Willy-Wien-Laboratory at the
Metrology Light Source

Contact
Head of Department
Dr. Gerhard Ulm
Tel.: +49-30-3481-7312, +49-30-6392-5080
E-Mail:
Office
Christine Hertzsch
Tel.: +49-30-3481-7260, +49-30-6392-5081
Fax: +49-30-3481-7510
E-Mail:
Address
Physikalisch-Technische Bundesanstalt
Department 7.2
Abbestr. 2-12
10587 Berlin