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30 results:
21. Meeting of asphere specialists  
Date: 05.02.2018
Percental score: 9 %
Specially manufactured aspheres Because of their complex geometry, aspheres – that is, non-spherically curved surfaces of optical elements such as mirrors or lenses – pose special challenges to the field of precision metrology.  
22. Using UV-C radiation to combat the coronavirus  
Date: 01.12.2020
Percental score: 10 %
Dr. Peter Sperfeld performs measurements of UV-C radiation The Physikalisch-Technische Bundesanstalt (PTB) measured the internal irradiance of a prototype of an indoor UV-C air purification unit to gauge its effectiveness in neutralizing germs and viruses. A  
23. New facility for the combined generation of force and torque  
Date: 05.10.2012
Percental score: 11 %
After a complex planning phase, the implementation of a machine allowing both longitudinal force and torque to be generated simultaneously is entering into its final phase. The measurement facility  
24. FPM Seminar  
Date: 01.11.2022
Percental score: 11 %
2019 Date Speaker Title 17.12.2019 Maximilian Reichert One-electron atom in curved spacetime and non-inertial motion 10.12.2019 Andrey Surzhykov Parity violation experiments at gamma  
25. Workshop "The Quantum Revolution in Metrology"  
Date: 28.11.2017
Percental score: 14 %
The revised International System of Units, the SI, will rest on seven defining constants. To realize the SI units based on the defining constants, methods of quantum metrology will be used in many  
26. New measuring quantities  
Date: 22.03.2016
Percental score: 16 %
Department 6.3 In its report ICRU 95 the International Commission on Radiation Units and Measurements (ICRU) has proposed new quantities in radiation protection. The effects of a possible  
27. Homogeneous MR images  
Date: 04.12.2018
Percental score: 17 %
Magnetic Resonance Imaging (MRI) at high magnetic fields up to 7 tesla allows a better image resolution, shorter measu-ring times and – thus – better diagnostics. A disadvantage is that, in the case  
28. Visiting PTB  
Date: 13.09.2022
Percental score: 18 %
Would you like to know how our atomic clocks tick? When even a nanometer is too long? Or all the things that physicists do with light? If you are interested in these or similar questions, then  
29. A calibration procedure for a force vector sensor by means of a spherical calibration body  
Date: 17.11.2008
Percental score: 27 %
Force standard machines generate a force vector whose direction is determined by the acceleration due to gravity. For the calibration of force vector sensors, different alignments of force vectors  
30. Presentations  
Date: 01.12.2022
Percental score: 47 %
The free electron g-factor in a homogeneous gravitational field Talk by Sebastian Ulbricht at Extreme Atomic Systems 39. Gravitational effects on free electron g-factor measurements Talk by Sebastian  
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