Performance of a new compact ERC ion source for stable isotope mass spectrometry
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Date
2014-02
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Nuclear Science and Technology Organisation
Abstract
We have developed a mass spectrometry system, known as the IRMS++, for
measurement of isotope ratios of the light elements carbon, nitrogen and oxygen,
for applications in earth and environmental sciences. By generating multiplycharged
atomic ions from molecular gaseous species, such as water vapour or
carbon dioxide gas, isotopes can be measured free from molecular interferences
[1]. The IRMS++ uses an ECR ion source specially designed for this purpose [2].
The new ECRIS design incorporates improvements to the microwave system,
with special attention to generation of the cavity mode which is expected to couple
most effectively to electrons in the ECR resonance zone. Also this design has an
improved magnetic field structure to optimise performance at 7GHz. In this paper we will report initial performance tests of the new ion source. © 2014, Proceedings of the 20th International Workshop on ECR Ion Sources.
Description
Keywords
Mass spectroscopy, Carbon, Nitrogen, Isotopes, Ions, Carbon dioxide
Citation
Button, D., Hotchkis, M., Greenless, B., Magee, C., & Roberts, E. (2014). Performance of a new compact ERC ion source for stable isotope mass spectrometry Presentation to the 20th International Workshop on Electron Cyclotron Resonance Ion Sources (ECRIS-2012), 25-28 September 2012, Sydney, Australia, (pp. 33).