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Rosatom will supply an isotope to Germany to create the new generation standard of mass

Rosatom will supply the isotope silicon-28 (28Si) to Germany in the fourth quarter of 2018, for the international scientific project 'Kilogram-3', needed for creation of the standard of mass of the new generation, the press service of the fuel company TVEL (a part of Rosatom) reported.
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«In 2018, the „Production Association 'Electrochemical Plant'“ (JSC 'PA ECP', a part of TVEL) will complete the delivery of the isotope of polysilicon monoisotope silicon 28Si in the course of implementation of the international scientific project 'Kilogram-3', which aim is to create the standard of mass of the new generation. The last shipment to Germany of the stable isotope of silicon 28Si in the form of polycrystal is scheduled for the fourth quarter of 2018,» the message said.

The platinum-iridium standard kilogram, which was manufactured more than a hundred years ago and is now stored in the International Bureau of Weights and Measures in the city of Sevres near Paris, is gradually losing weight. The new standard was created as a part of the project, in the form of a ball of an ideal spherical shape made of polycrystalline silicon enriched with the stable isotope 28Si, with a deviation from sphericity of less than 30 nm.

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