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Journal of Physics Conference Series

Coincidence investigation of electron impact excitation of He atoms to triplet states in full range of scattering angles – feasibility study

Łukasz Kłosowski, D. Dziczek, Mariusz Piwiński, Stanisław Chwirot

Published Nov 5, 2012• 0 citations
Publisher

Abstract

It is possible to measure electron impact coherence parameters (EICPs) at large scattering angles with application of magnetic angle changing devices, however the presence of magnetic field can strongly influence experimental results for the excited states of longer lifetimes. We consider a new type of MAC device producing very low magnetic field in the scattering region and a new approach to coincidence measurements – application of multiple photon detectors with individual coincidence circuits to reduce the time of data accumulation.

DOI
10.1088/1742-6596/388/14/142002

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It is possible to measure electron impact coherence parameters (EICPs) at large scattering angles with application of magnetic angle changing devices, however the presence of magnetic field can strongly influence experimental results for the excited states of longer lifetimes. We consider a new type of MAC device producing very low magnetic field in the scattering region and a new approach to coincidence measurements – application of multiple photon detectors with individual coincidence circuits to reduce the time of data accumulation.
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