Low energy ion counting efficiency of a Johnston electron multiplier.
We report a measurement of the absolute efficiency of a Johnston Laboratories MMl electron multiplier for detection of 2-4 keV Ne(+). The measured detection efficiency depends both on ion impact energy and on the magnitude and direction of an externally applied electric field near the first dynode.
Stickel
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Department of Space Physics and Astronomy, Rice University, Houston, Texas 77001, USA.
Kellert
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Smith
K A
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Dunning
F B
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Stebbings
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RF