Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 82, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3505491
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Funding
- Radboud University
- EU Molecular Universe network
- Chinese Academy of Sciences
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We have designed and implemented a large aperture electrostatic Einzel lens that magnifies the images of low energy ions or electrons in a standard velocity map imaging apparatus by up to a factor of 5 while allowing the normal use of the apparatus (without blocking any part of the detector). The field strength in the interaction region remains reasonably constant with or without magnification, and the lens can be used in the normal crush mode or with any of the different variants of the slicing mode. We have characterized the performance of the lens by imaging ion recoil due to two-photon resonant three-photon ionization [(2+1) REMPI] of O((3)P(2)) atoms and by imaging slow NO molecules from the near-threshold photodissociation of the NO-Ar van der Waals complex. (C) 2011 American Institute of Physics. [doi:10.1063/1.3505491]
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