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A simple photoionization scheme for characterizing electron and ion spectrometers

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arxiv 1707.06911 v1 pith:LUKJJBNR submitted 2017-07-21 physics.ins-det

A. Wituschek , J. von Vangerow , J. Grzesiak , F. Stienkemeier , M. Mudrich This is my paper
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keywords schemediodeelectronelectronsionslaserphotoionizationsimple
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abstract

We present a simple diode laser-based photoionization scheme for generating electrons and ions with well-defined spatial and energetic (<2 eV) structures. This scheme can easily be implemented into ion or electron imaging spectrometers for the purpose of off-line characterization and calibration. The low laser power ~1$ mW needed from a passively stabilized diode laser and the low flux of potassium atoms in an effusive beam make our scheme a versatile source of ions and electrons for applications in research and education.

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