Frankfurt 2006 – wissenschaftliches Programm
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MO: Molekülphysik
MO 55: Poster: Collisions and Energy Transfer
MO 55.7: Poster
Donnerstag, 16. März 2006, 16:30–18:30, Labsaal
Dissociative electron attachment to gas phase explosives — •Philipp Sulzer1, Flaminia Rondino2, David Kilgour3, Verena Grill1, Sylwia Ptasinska1, Stephan Denifl1, Paul Scheier1, and Tilmann D. Märk1 — 1Institut für Ionenphysik, Leopold-Franzens-Universität Innsbruck, Technikerstr. 25, A 6020 Innsbruck — 2Universita di Roma, La Sapienza, Dipartimento di Chimica — 3Defence Science and Technology Laboratory (Dstl), Fort Halstead, Detection Technology Department, Fort Halstead, Sevenoaks, Kent, TN14 7BP
Mass spectrometry is a potentially useful technology for the detection of explosives in security screening applications. Dissociative electron attachment is a resonant process and leads to the formation of (fragment) anions only at specific electron energies. The positions of the resonances depend strongly on the composition and structure of the neutral precursor molecule; thereby this dependence could provide an unambiguous identification of the explosive. In this contribution we present the attachment cross sections of all studied major product anions formed by free electron attachment to various gas phase explosives utilizing a high resolution hemispherical electron monochromator.
This work is partly supported by the FWF, Wien, the EU Commission, Brussels and the UK Ministry of Defence (MOD) through the Defence Science and Technology Laboratories (Dstl) contract RD031-011213 as part of the Electronics Systems Research Programme.