ION OPTICAL DESIGN AND EXPERIMENTAL RESULTS OF AN EXPERIMENT TO ACCUMULATE A WEIGHABLE MASS OF IONS

Christian Schlegel, Dirk Ratschko, Frank Scholz, Michael Gläser

Abstract

A still unsolved problem in the field of metrology is the definition of the SI unit kg in terms of universal physical constants as it was done for the other fundamental SI units. One possibility is to accumulate ions up to a weighable mass. Then the atomic mass unit can be determined by measuring the total charge and mass of the accumulated ions. This article describes the ion optical properties of an existing experiment for ion accumulation at the PTB. Results of the ion optical calculations are used for experimental settings to measure mass spectra of a mixed xenon gold ion beam.

Keywords

ion optic, ion beam, mass spectroscopy

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PWC-2003-TC3-025.pdf

DOI

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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