The smoke ion source: a device for the generation of cluster ions via inert gas condensation |
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| Authors: | K M McHugh H W Sarkas J G Eaton C R Westgate K H Bowen |
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| Institution: | 1. Department of Chemistry, Johns Hopkins University, 21218, Baltimore, MD, USA
2. Department of Electrical Engineering, Johns Hopkins University, 21218, Baltimore, MD, USA
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| Abstract: | We report the development of an ion source for generating intense, continuous beams of both positive and negative cluster ions. This device is the result of the marriage of the inert gas condensation method with techniques for injecting electrons directly into expanding jets. In the preliminary studies described here, we have observed cluster ion size distributions ranging fromn=1?400 for Pb n + and Pb n ? , and fromn=12?5700 for Li n ? . |
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