Bedington, R;
Kataria, D;
Smith, A;
(2015)
A miniaturised, nested-cylindrical electrostatic analyser geometry for dual electron and ion, multi-energy measurements.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
, 793
pp. 92-100.
10.1016/j.nima.2015.04.067.
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Abstract
The CATS (Cylindrical And Tiny Spectrometer) electrostatic optics geom- etry features multiple nested cylindrical analysers to simultaneously measure multiple energies of electron and multiple energies of ion in a conguration that is targeted at miniaturisation and MEMS fabrication. In the prototyped model, two congurations of cylindrical analyser were used, featuring terminating side- plates that caused particle trajectories to either converge (C type) or diverge (D type) in the axial direction. Simulations show how these dierent electrode congurations aect the particle focussing and instrument parameters; C-type providing greater throughputs but D-type providing higher resolving powers. The simulations were additionally used to investigate unexpected plate spacing variations in the as-built model, revealing that the K-factors are most sensitive to the width of the inter-electrode spacing at its narrowest point.
| Type: | Article |
|---|---|
| Title: | A miniaturised, nested-cylindrical electrostatic analyser geometry for dual electron and ion, multi-energy measurements |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.nima.2015.04.067 |
| Publisher version: | http://dx.doi.org/10.1016/j.nima.2015.04.067 |
| Language: | English |
| Additional information: | Copyright © 2015. This manuscript version is published under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International licence (CC BY-NC-ND 4.0). This licence allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licences are available at http://creativecommons.org/licenses/by/4.0. |
| Keywords: | Plasma; Electrostatic analyzer; Micro-fabrication; SIMION |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1468793 |
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