Title :
A web-based database of information relating to the evaluation of the Avogadro constant using the XRCD method
Author :
Kenny, M.J. ; De Bievre, P. ; Picard, A.
Author_Institution :
Nat. Meas. Lab., CSIRO, Lindfield, NSW, Australia
Abstract :
A number of laboratories are working towards an evaluation of the Avogadro constant with combined relative uncertainty of 1 in 10/sup 8/. This will enable a definition of the kilogram based on a specific number of /sup 12/C atoms rather than an artefact based definition. In order to coordinate the data obtained by the participating laboratories, a web-based database has been set up. This database forms part of the BIPM website, although access is limited to participants.
Keywords :
Web sites; X-ray diffraction; constants; measurement uncertainty; /sup 12/C; Avogadro constant evaluation; BIPM; Bureau International des Poids et Mesures; X-ray crystal diffraction; XRCD method; combined relative uncertainty; kilogram definition; web-based database; Australia; Databases; Density measurement; Europe; International Committee; Laboratories; Metrology; Particle measurements; Silicon; X-ray diffraction;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034843
