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344 results:
21. Optimisation of the Ion Beam-Apparatus to Maximal Transmission  
Date: 25.06.2007
Percental score: 6 %
At the ion accumulation experiment the mass of accumulated ions and thereby the measurement uncertainty is governed by the value of the ion current at the collector. In order to achieve the maximal  
22. A Prize for PTB Nanometrologist  
Date: 16.07.2007
Percental score: 9 %
Thorsten Dziomba, a young PTB scientist, has been awarded the title "The Best Young Metrologist of COOMET". His presentation convinced the high-ranking committee, among them the  
23. Comparison between experimental and calculated ratios DW/Ka in the field of X-radiation with generating potentials from 70 kV to 280 kV  
Date: 09.08.2007
Percental score: 55 %
The measurand used in dosimetry for the therapy with X-radiation is the water absorbed dose. The measurand used in dosimetry for the therapy with X-radiation is the water absorbed dose, DW. As a  
24. Alanine dosimetry - from metrology to therapy?  
Date: 09.08.2007
Percental score: 5 %
A commercial, compact ESR spectrometer intended for use in industrial alanine dosimetry was investigated with respect to its possible use in radiation therapy dosimetry. If data analysis procedures  
25. ESR/alanine dosimetry: response for ultrahard photon radiation  
Date: 09.08.2007
Percental score: 5 %
It was possible to determine with a standard measurement uncertainty of only 0.3% the relative response of the secondary standard measuring system based on the detection of radiation-induced free  
26. Integration von π-Kontakten in Josephson-Qubits und Einzelflussquanten-Strukturen  
Date: 05.12.2007
Percental score: 9 %
The remarkable property of exhibiting an additional phase drop of π found in the superconductor-ferromagnet-superconductor (SFS) Josephson junctions of certain thickness of the ferromagnetic layer  
27. Grote Stamm Value Chains und QI final 2007-12  
Date: 07.01.2008
Percental score: 1 %
Grote Stamm Value Chains und QI final 2007-12 Quality Requirements and Quality Infrastructure in Value Chains Reaching Out to Developing Countries Examples from the Fish/Shrimps, Spices, Wood, and  
28. Uncertainty of predictions in building acoustics  
Date: 25.08.2008
Percental score: 8 %
A new approach for calculating the measurement uncertainty made it possible for the first time to realistically evaluate the uncertainties of building acoustic predictions according to EN 12354-1  
29. PTB Alanine Dosimetry System for Quality Assurance in Belgium  
Date: 29.09.2008
Percental score: 8 %
Towards the end of this year, a copy of the PTB measuring system for dosimetry by means of alanine and electron spin resonance will be installed at the Belgian Xios Hoogeschool Limburg within the  
30. Calorimetric determination of the absorbed dose to water in the near field of 192Ir brachytherapy sources  
Date: 29.09.2008
Percental score: 12 %
The measurand in the dosimetry of brachytherapy sources is the absorbed dose rate to water, at a distance of 1 cm from the centre of activity of the radiation source, vertical to the source axis.  
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