Abstract

We have recently constructed the tandem mass spectrometer set-up BESTOF (consisting of a B-sector field combined with an E-sector field, a Surface and a Time Of Flight mass spectrometer) which allows the investigation of ion/surface reactions with high primary mass and energy resolution, i.e. energy spreads of as low as 80 meV FWHM have been achieved. Using BESTOF we have extended previous investigations in several respects. Firstly, we have revisited previously investigated surface induced reactions of various polyatomic ions including the acetone ion (which will be presented here as an illustrative example), the benzene ion and CF 3 + interacting with stainless steel surfaces. In addition, we have started to investigate the reactions of polyatomic hydrocarbon ions with carbon tiles from the Tore Supra tokamak in Cadarache.

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