DocumentCode
2279264
Title
Oxide layer mass determination at the silicon sphere of the Avogadro Project
Author
Busch, I. ; Danzebrink, H.U. ; Krumrey, M. ; Bettin, H.
Author_Institution
Phys.-Tech. Bundesanstalt, Braunschweig, Germany
fYear
2008
fDate
8-13 June 2008
Firstpage
408
Lastpage
409
Abstract
Within the International Avogadro Project two spheres of highly enriched 28Si crystals have been produced, to perform a new determination of the Avogadro constant NA. As one of the critical tasks the mass of the oxide layer of the spheres has to be measured.
Keywords
constants; mass measurement; silicon; Avogadro constant determination; Avogadro project; oxide layer mass determination; silicon sphere; Density measurement; Ellipsometry; Optical films; Optical surface waves; Performance evaluation; Pollution measurement; Silicon; Thickness measurement; Uncertainty; X-rays;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location
Broomfield, CO
Print_ISBN
978-1-4244-2399-6
Electronic_ISBN
978-1-4244-2400-9
Type
conf
DOI
10.1109/CPEM.2008.4574826
Filename
4574826
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