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343 results:
171. Successful testing of platinum-iridium sorption artefacts for precision mass determinations under vacuum conditions  
Date: 27.07.2010
Percental score: 5 %
The influence of sorption effects on the accuracy of mass determinations under vacuum conditions was significantly reduced by means of sorption artefacts made of a platinum-iridium alloy. The  
172. Field Generators  
Date: 14.04.2016
Percental score: 5 %
Description of methods and available test equipment The methods applied at PTB are based on common rules described in the guidelines VDI/VDE/DGQ/DKD 2622 Blatt 10: "Kalibrieren von Messmitteln  
173. Publications  
Date: 19.01.2018
Percental score: 5 %
2016 Frobese, D.-H.: Neufassung der TRBS 3151/TRGS 751 - Aktualisierung der Technischen Regel zur Vermeidung von Brand-, Explosions- und Druckgefährdungen an Tankstellen und Gasfüllanlagen zur  
174. Neutron monitor for pulsed radiation  
Date: 29.09.2008
Percental score: 5 %
At PTB, a new monitor for the measurement of pulsed neutron radiation has been developed, based on the detection of β- radiation from activity reactions on silver. PTB has applied for a patent for  
175. Kooperationen  
Date: 10.04.2015
Percental score: 5 %
Aus dem Jahresbericht 2013 Kooperationen Kooperationen Abteilung 7, Temperatur und Synchrotronstrahlung Quantitativer Nachweis von fc-Röntgenpulsen Entwicklung von Detektionssystemen für den  
176. In-vivo dosimetry with alanine/ESR  
Date: 30.03.2009
Percental score: 5 %
The secondary standard measuring system for the absorbed dose to water on the basis of alanine/ESR was used for in-vivo measurements in the radiotherapy of prostate carcinoma. The investigations were  
177. Literature  
Date: 09.12.2019
Percental score: 5 %
Literature Basic reference F. Spieweck, H. Bettin: Review: Solid and liquid density determination. tm - Technisches Messen 59 (1992), 237-244; 285-292 In German, the more recent  
178. Helmholtz Prize for the "new" ampere  
Date: 31.03.2014
Percental score: 5 %
[ptb/es] Quantum standards for the electrical units the volt and the ohm have been available for more than two decades. However, for the electrical base unit of the international system of units  
179. 2015 Okhapkin PhysRevA92author  
Date: 14.01.2022
Percental score: 5 %
2015 Okhapkin PhysRevA92author RAPID COMMUNICATIONS PHYSICAL REVIEW A 92, 020503(R) (2015) Observation of an unexpected negative isotope shift in 229 Th+ and its theoretical explanation M. V.  
180. 4.23 Optical Nanometrology  
Date: 20.01.2021
Percental score: 5 %
Overview on standards for nanometrology   http://www.nanoscale.ptb.de/nanoscale/nanoscale-standards.html http://www.nano-refmat.bam.de/en/ Linewidth calibrations on photomasks are offered  
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