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Velocity-map imaging at low extraction fields.

Horke, D. A. and Roberts, G. M. and Lecointre, J. and Verlet, J. R. R. (2012) 'Velocity-map imaging at low extraction fields.', Review of scientific instruments., 83 (6). 063101.

Abstract

We present a velocity-map imaging (VMI) setup for photoelectron imaging that utilizes low electric extraction fields. This avoids any complications that could arise from electrostatic interactions between the extraction field and the molecular properties that are probed and has a minimal effect on the trajectory of ions in ion beam experiments. By using an attractive potential supplied to the detector, and keeping the electrodes at ground (zero) potential, we show that fringe fields between the VMI arrangement and the vacuum chamber can be eliminated, which is important in experiments on ions.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1063/1.4724311
Publisher statement:© 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Horke, D. A. and Roberts, G. M. and Lecointre, J. and Verlet, J. R. R. (2012) 'Velocity-map imaging at low extraction fields.', Review of scientific instruments., 83 (6): 063101 and may be found at http://dx.doi.org/10.1063/1.4724311
Date accepted:No date available
Date deposited:05 February 2016
Date of first online publication:June 2012
Date first made open access:No date available

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