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Temperature and Synchrotron Radiation

Division 7

Warm or cold, light or dark: thermodynamic and radiation physics issues are the focus of Division 7.


The main tasks of the approximately 100 employees of Division 7 on the Berlin-Charlottenburg campus are thermometry, thermal energy, cryosensorics, optical radiometry and vacuum metrology.

Metrology with synchrotron radiation, on the other hand, is the field of activity of the approximately 75 employees of Division 7 at the Berlin-Adlershof site with the synchrotron radiation sources BESSY II and Metrology Light Source (MLS).

With its research and development work, Division 7 is involved in the European Metrology Programme for Innovation and Research (EMPIR), in the future metrological topics of quantum technology, environment and climate, energy, digitization and medicine as well as in the field of nanometrology.


The semiconductor industry needs metrology systems to characterize the dimensions of transistor structures in the nanometer range in a fast, non-destructive, and metrologically reliable manner. A major challenge here is the limitation of the resolution of the measurement systems by the wavelength of the radiation used. Therefore, the use of short-wavelength extreme ultraviolet (EUV) radiation is...

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The article "Calibration of the dual-mode auto-calibrating resistance thermometer with few-parts-per-million uncertainty" published in Measurement Science and Technology was awarded by IOP publishing with the "Outstanding Paper Award 2022" in the field of precision measurement. The paper by Dietmar Drung, Marco Kraus and Christian Krause describes the calibration method of PTB’s novel noise...

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More news

Annual Report 2022

Das Jahr 2022 war für Abteilung 7 wieder sehr erfolgreich. Drittmittel, Veröffentlichungen, und akademische Abschlüsse auf der einen Seite sowie Kalibrierungen, Begutachtungen und Gremienarbeit blieben bei leicht gesunkenem Personaleinsatz auf hohem Niveau. Entspre­chend war die Rückmeldung zur Arbeits- und Aufgabenplanung durch das Präsidium durch­weg positiv...
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Head of Division

Prof. Dr. Mathias Richter

  • Head of Division 7 Temperature and Synchrotron Radiation since 2019
  • Associate Professor of Experimental Physics at the Technical University Berlin since 2004
  • Chairman of the Freundeskreis Helmholtz-Zentrum Berlin e.V. since 2012
  • Member of the board of the Initiativgemeinschaft Außeruniversitärer Forschungseinrichtungen in Adlershof e. V. (IGAFA) since 2021
  • Member of the board of the Physical Society of Berlin (PGzB) since 2020
  • Member of the council of the German Physical Society (DPG) since 2021

  • Joined the PTB in August 1995
  • Habilitation in experimental physics at the Technical University Berlin (1990 to 1996)
  • Postdoc at Deutsches Elektronen-Synchrotron (DESY) in Hamburg and at the Université Paris-Sud XI (1988 to 1990)
  • Doctorate in physics at the University of Hamburg (1984 to 1988)
  • Diploma in physics at the University of Hamburg (1984)
  • Abitur in Marburg a. d. Lahn (1978)

  • Innovation Award on Synchrotron Radiation 2011
  • https://www.webofscience.com/wos/author/record/207737