A dedicated AMS setup for medium mass isotopes at the Cologne FN tandem accelerator
| Autor: | C. Müller-Gatermann, R. Altenkirch, P. Bhandari, G. Hackenberg, Alexander Stolz, Stefan Heinze, Alfred Dewald, C. Feuerstein, M. Schiffer, S. Herb |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Nuclear and High Energy Physics
Chemistry 020206 networking & telecommunications 02 engineering and technology Mass spectrometry 01 natural sciences Ion source Ion Nuclear physics Time of flight Ionization 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Isobar 010306 general physics Electrostatic analyzer Instrumentation Accelerator mass spectrometry |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 406:287-291 |
| ISSN: | 0168-583X |
| DOI: | 10.1016/j.nimb.2017.03.083 |
| Popis: | AMS measurements of medium mass isotopes, e.g. of 53Mn and 60Fe, are gaining interest in various fields of operation, especially geoscience. Therefore a dedicated AMS setup has been built at the Cologne 10 MV FN tandem accelerator. This setup is designed to obtain a sufficient suppression of the stable isobars at energies around 100 MeV. In this contribution we report on the actual status of the new setup and the first in-beam tests of its individual components. The isobar suppression is done with (dE/dx) techniques using combinations of energy degrader foils with an electrostatic analyzer (ESA) and a time of flight (ToF) system, as well as a (dE/dx),E gas ionization detector. Furthermore, the upgraded ion source and its negative ion yield measurement for MnO− are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect