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454 results:
  • 221. 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  
  • 222. The surface also plays a role: how waviness, roughness and patch potentials influence capacitive displacement measurements  
    Date: 15.03.2023
    Percental score: 5 %
    As part of the DFG project KO1483/5-1, the influence of surface form and local differences in the surface potential (patch potentials) on capacitive displacement sensors was systematically  
  • 223. Innov eigensi- Konz-allge-IEC-Beschreibung-englisch-new  
    Date: 13.11.2009
    Percental score: 5 %
    Innov eigensi- Konz-allge-IEC-Beschreibung-englisch-new Physikalisch-Technische Bundesanstalt Braunschweig, FB 3.6 „Intrinsic Safety and Safety of Systems“ Innovative intrinsically safe concepts  
  • 224. Neutron monitor AGREM – test measurements in pulsed radiation fields  
    Date: 31.10.2014
    Percental score: 5 %
    The neutron monitor AGREM, developed at PTB, has been tested in different pulsed radiation fields and compared with other neutron monitors. Whereas commercial monitors exhibited a saturation  
  • 225. 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  
  • 226. Welt zeit 24mio v40  
    Date: 15.02.2023
    Percental score: 5 %
    Welt zeit 24mio v40 STAATEN DER ERDE - Zeitzonen  
  • 227. 2010-Phys.Rev.Lett105 Excitation of the Isomeric  
    Date: 30.11.2011
    Percental score: 5 %
    2010-Phys.Rev.Lett105 Excitation of the Isomeric week ending 29 OCTOBER 2010 PHYSICAL REVIEW LETTERS PRL 105, 182501 (2010) Excitation of the Isomeric 229m Th Nuclear State via an Electronic  
  • 228. The half-life of Se-79  
    Date: 13.07.2010
    Percental score: 5 %
    Within the scope of a cooperation of several institutes, the half-life of the long-lived isotope Se-79 could be determined with a clearly improved uncertainty. PTB has contributed in particular by  
  • 229. Mass determination of two new 28Si spheres in vacuum in preparation of the redefinition of the kilogram  
    Date: 01.11.2017
    Percental score: 4 %
    A relative standard uncertainty (k = 1) of 6.1 × 10−9 was achieved for the mass determination in vacuum of two silicon spheres manufactured from a new 28Si crystal. The measurements  
  • 230. Forschungsvorhaben  
    Date: 10.04.2015
    Percental score: 4 %
    Aus dem Jahresbericht 2013 Forschungsvorhaben Forschungsvorhaben Abteilung 4, Optik Neu bewilligte Forschungsvorhaben Verfahren zur Rückführung von flasher-kalibrierten Solarzellen und Modulen  
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