Note: Determining the detection efficiency of excited neutral atoms by a microchannel plate detector.
We present a method for determining the detection efficiency of neutral atoms relative to keV ions. Excited D* atoms are produced by D2 fragmentation in a strong laser field. The fragments are detected by a micro-channel plate detector either directly as neutrals or as keV ions following field ionization and acceleration by a static electric field. Moreover, we propose a new mechanism by which neutrals are detected. We show that the ratio of the yield of neutrals and ions can be related to the relative detection efficiency of these species.
J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA.
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Berry
J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA.
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Zohrabi
J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA.
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Hayes
J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA.
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Ablikim
J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA.
Bethany
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Jochim
J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA.
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Severt
J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA.
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Carnes
J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA.
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Ben-Itzhak