Photolysis and Radiolysis of Simple Ices

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

The Department of Physics and Astronomy at Northern Arizona University has recently completed the development of an ultra high vacuum analysis system to study the photolysis and radiolysis of ices. The investigation of these fundamental processes in ices have important applications in astrophysics, planetary astronomy and atmospheric physics. The system incorporates photoelectron spectroscopy, Fourier transform infrared spectroscopy and mass spectrometry as analytical techniques. The system also includes a closed cycle helium cryostat for the growth of the ice samples. Processing tools include x-ray and UV light sources and a low energy (up to several keV) ion source. The capabilities of this new system are described and XPS and FTIR results from several simple ices will be presented.

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