DETERMINATION OF THE ATOMIC MASS CONSTANT BY ION ACCUMULATION |
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| Christian Schlegel, Michael Gläser, Frank Schlolz, Gabriela Bethke, Michael Mecke |
- Abstract:
- An experiment for the direct measurement of the atomic mass constant was performed by accumulating ions from an ion beam up to a weighable mass. The aim of this experiment was to develop an alternative approach for the redefinition of the SI unit kilogram. In a recent experiment a mass of about 300 mg bismuth was accumulated and the atomic mass unit could be determined with a relative uncertainty better than 1.0 × 10-4.
- Keywords:
- definition of SI-Unit Kilogram, mass accumulation, mass determination
- Download:
- IMEKO-WC-2009-TC3-049.pdf
- DOI:
- -
- Event details
- Event name:
- XIX IMEKO World Congress
- Title:
Fundamental and Applied Metrology
- Place:
- Lisbon, PORTUGAL
- Time:
- 06 September 2009 - 11 September 2009