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Physikalisch-Technische Bundesanstalt (PTB)
Joachim Ullrich, born in 1956, studied geophysics and physics at the University of Frankfurt where, after graduating in 1983, he also completed his doctorate in 1987 and qualified as a professor in 1994. From 1989 to 1997 he worked as a research assistant at the Gesellschaft für Schwerionenforschung in Darmstadt, where he played a key role in further developing recoil ion spectroscopy. After a research period at Kansas State University and a visiting professorship at the University of Missouri in 1995, he received a call to the chair of experimental physics at the University of Freiburg in 1997. With his appointment as a director of the Max Planck Institute for Nuclear Physics (MPIK) in Heidelberg, he headed the department “Experimental Multiparticle Quantum Dynamics" from 2001. Since the beginning of 2012, Joachim Ullrich has been President of the Physikalisch-Technische Bundesanstalt.
Awards
Joachim Ullrich has received wide recognition at national and international level for his scientific work, which encompasses approximately 600 publications. Among other honors he has received the Leibniz Prize of the German Research Foundation in 1999. He is active in the committees of many international conferences, scientific advisory boards and supervisory boards. In 2013, Joachim Ullrich became second deputy of the Presidial Board of the German Institute for Standardization e. V. and a member of Germany’s National Academy of Engineering Sciences (acatech). For the Meter Convention, Joachim Ullrich has been a member of the International Committee for Weights and Measures (CIPM), Vice President of the CIPM since 2015 and, since the beginning of 2014, President of the Consultative Committee for the International Units (CCU). As a world-renowned researcher and science manager, Joachim Ullrich received the Federal Cross of Merit 1st Class of the Federal Republic of Germany in 2017.
The 20th of May 2019 is a special day. From that day on, the old definitions of what a kilogram, a mole, an ampere and a kelvin represent, are history. The future of the International (…)
Scientists from the Physikalisch-Technische Bundesanstalt (PTB) have implemented a novel pressure measurement method, quasi as a byproduct of the work on the "new" kelvin. In addition to being new, this procedure is a primary method, i.e. it only depends on natural constants. As an independ ... more
Don't Give the Slightest Chance to Toxic Elements in Medicinal Products
Lead, cadmium, mercury, and arsenic do not belong in medicinal products. International requirements for the quality of medicines have therefore become more stringent and introduced new control requirements. Hence, it makes sense to use high-accuracy reference solutions with defined contents ... more
Measurement of the dynamic mechanical properties of viscous materials
In microsystems metallic components are increasingly being replaced by those from low-cost polymers. For the thickness measurement of polymers, there is now the DIN standard 32567 available, which describes both, optical and tactile surface measuring methods for the precise measurement of t ... more
The importance of traceability in laboratory medicine
World Metrology Day is celebrated annually on the 20th of May and this year’s focus on health provides an opportunity to emphasize the importance of comparable and reliable measurement results in laboratory medicine. more
How the Avogadro constant was measured for the last time
Since the 20th of May 2019, the mass unit kilogram is no longer defined by the international kilogram prototype but by the numerical value of the Planck constant, the most important fundamental constant in quantum physics. For this definition, the Planck constant needed to be measured with ... more
Natural constants take center stage
The 20th of May 2019 is a special day. From that day on, the old definitions of what a kilogram, a mole, an ampere and a kelvin represent, are history. The future of the International System of Units will see natural constants play the star roles. more
Gavin O’Connor was born in Dublin and completed a Diploma in analytical chemistry at Athlone Institute of Technology, Ireland, in 1993. He continued his studies in analytical chemistry to B.Sc. level in the UK before completing his PhD in mass spectrometry at the University of Plymouth in 1 ... more
André Henrion, born in 1957, studied chemistry at Humboldt-University in Berlin, where he received his doctorate in 1988 in the field of Physical Organic Chemistry. After working at the Academy of Sciences in Berlin for a short period he moved on to the Physikalisch-Technische Bundesanstalt ... more
Rüdiger Ohlendorf, born in 1959, studied chemical engineering with a focus on instrumental analysis at the Münster University of Applied Sciences. After working at ISAS (Institute for Spectrochemistry and Applied Spectroscopy) and at Schering AG, he moved on to the Physikalisch-Technische B ... more
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