Improved 36Cl AMS at 5MV

Wilcken, K., Freeman, S. , Dougans, A., Xu, S., Loger, R. and Schnabel, C. (2010) Improved 36Cl AMS at 5MV. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 268(7-8), pp. 748-751. (doi: 10.1016/j.nimb.2009.10.021)

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Abstract

Small changes to our ion source and gas ionization detector have significantly improved Cl measurement by reducing source memory and increasing interference rejection. Gas stripped low energy 30 MeV <sup>36</sup>Cl<sup>5+</sup> ions are still efficiently transported to the detector but <sup>36</sup>S vs. <sup>36</sup>Cl separation is improved by an order of magnitude. Accordingly <sup>36</sup>Cl/Cl background is <10<sup>-15</sup> before additional interference correction that is also newly automated. <sup>35</sup>Cl currents have increased to 30 μA and <sup>36</sup>Cl/Cl inter-cathode repeatability is 3%.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Dougans, Mr Andrew and Schnabel, Dr Christoph and Wilcken, Mr Klaus and Xu, Dr Sheng and Freeman, Professor Stewart
Authors: Wilcken, K., Freeman, S., Dougans, A., Xu, S., Loger, R., and Schnabel, C.
Subjects:G Geography. Anthropology. Recreation > GE Environmental Sciences
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:08 October 2009

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