Freeman, S.P.H.T. , Cook, G.T. , Dougans, A.B., Naysmith, P. , Wilcken, K.M. and Xu, S. (2010) Improved SSAMS performance. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 268(7-8), pp. 715-717. (doi: 10.1016/j.nimb.2009.10.012)
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Abstract
We operate a new NEC 250 kV single-stage accelerator mass spectrometer (SSAMS) next to our established 5 MV tandem. This permits good comparison of 14C-AMS and challenges SSAMS performance. Initial SSAMS ion-optical deficiencies have been addressed by shimming the injection magnet and 3‰ 14C/13C measurement with background limited by sample chemistry is routine. Higher-precision analysis is also achievable. A problematic measurement interference remains, however. The small spectrometer was procured to add measurement capacity, and for experiments with positive ions, but is now the preferred instrument for both convenience and measurement quality.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Dougans, Mr Andrew and Naysmith, Mr Phillip and Cook, Professor Gordon and Wilcken, Mr Klaus and Xu, Dr Sheng and Freeman, Professor Stewart |
| Authors: | Freeman, S.P.H.T., Cook, G.T., Dougans, A.B., Naysmith, P., Wilcken, K.M., and Xu, S. |
| College/School: | College of Science and Engineering > Scottish Universities Environmental Research Centre |
| Journal Name: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |
| ISSN: | 0168-583X |
| ISSN (Online): | 1872-9584 |
| Published Online: | 07 October 2009 |
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