Logo of the Physikalisch-Technische Bundesanstalt

Metrology with Synchrotron Radiation

The Physikalisch-Technische Bundesanstalt (PTB) is the national metrology institute and the highest authority when it comes to correct and reliable measurements in Germany. Since 1982, PTB has also been using synchrotron radiation for metrological tasks. The more than 75 employees of the departments 7.1 Radiometry with Synchrotron Radiation and 7.2 X-ray Metrology with Synchrotron Radiation maintain and use for this purpose a Laboratory at the storage ring BESSY II of the Opens external link in new windowHelmholtz-Zentrum Berlin (HZB) as well as PTB's own Metrology Light Source (MLS) in Berlin-Adlershof.

The main focus of the work is on the following areas:

  •  Fundamentals of metrology, radiometry
  •  Metrology for industry, EUV lithography
  •  Research and development for optical technologies, space instruments
  •  Materials metrology, nanometrology

News

Hollow nanospheres as potential reference particles for extracellular vesicles

Extracellular vesicles (EVs) are nanometer-sized cell-derived particles in body fluids and can be used as potential biomarkers for diseases such as cancer, inflammation and cardiovascular disease. EVs gained a lot of interest as they are released from all cell types and their biochemical composition, concentration and function are disease-dependent...

[ more ]

FAIR optical constants: A new software tool

The optical constants fully describe how a material transmits, reflects, absorbs, refracts or scatters light. Their precise knowledge is therefore of central importance for optical technology. As part of the European joint projects "Advanced Traceable Metrology for Optical Constants" (ATMOC) and "14 Angstrom CMOS IC technology" (14ACMOS), PTB has started to build up a database of optical constants...

[ more ]

Reconstruction of atomic electron densities

Reconstructing the spatial electron density of atomic systems not only provides new insights into quantum mechanics, but also advances in areas such as material science and functional surfaces. In the photoelectric effect, photoelectrons are emitted through interaction with light...

[ more ]
More news