The determination of the Avogadro Constant from selected silicon crystals is described. The density molar mass and lattice spacing of the 2 crystals were measured at NMIJ, PTB, IRMM, IMGC and NIST.
When all date are combined, it leads to the Avogadro Constant of 6.022 135 3 (21) 10^23 mol^-1.
FUJII K.;
WASEDA A.;
KURAMO N.;
MIZUSHIMA S.;
BECKER P.;
BETTIN H.;
NICOLAUS A.;
KUETGENS U.;
VALKIERS Staf;
TAYLOR Philip;
DE BIEVRE Paul;
MANA G.;
MASSA M.;
MATYI R.;
2006-03-03
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
JRC30350
https://publications.jrc.ec.europa.eu/repository/handle/JRC30350,
10.1109/TIM.2004.843101,
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