Choosing the right stripper gas from AMS and other applications with tandem accelerators at low and medium terminal voltage
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Date
2013-04-11
Journal Title
Journal ISSN
Volume Title
Publisher
Department of Nuclear Physics Research School of Physics and Engineering, The Australian National University
Abstract
Recent experimentation with stripper gases used for Accelerator Mass Spectrometry (AMS) has seen a divergence in the practices adopted at laboratories performing AMS of high mass species (such as actinides) at low and medium terminal voltages. At low voltages (<1 MV), the Ion Beam Group at ETH Zurich has demonstrated the advantages of using helium as the stripper gas, for both radiocarbon AMS [1] and for actinides AMS [2]. Meanwhile, at ANSTO we have investigated several gases at 4 MV [3, 4] and find that a multi–atom molecular gas such as sulphur hexafluoride provides the best yield for actinides AMS. In both cases, data published 40 years ago provided clues as to the optimum gas in each situation.
Description
Keywords
Mass spectroscopy, Gases, Laboratories, ANSTO, Data, Uranium ores
Citation
Hotchkis, M. A. C., Child, D., Fink, D., Levchenko, V., & Wilcken, K. (2013). Choosing the right stripper gas from AMS and other applications with tandem accelerators at low and medium terminal voltage. Paper presented at the Heavy Ion Accelerator Symposium on Fundamental and Applied Science (HIAS), 8th–12th April 2013, Canberra, Australia.