Characterisation of the University of Surrey Ion Beam Centre in-air scanning microbeam

M. J. Merchant; P. Mistry; M. Browton; A. S. Clough; F. E. Gauntlett; C. Jeynes; K. J. Kirkby; G. W. Grime

doi:10.1016/j.nimb.2005.01.029

Characterisation of the University of Surrey Ion Beam Centre in-air scanning microbeam

M. J. Merchant^*, P. Mistry, M. Browton, A. S. Clough, F. E. Gauntlett, C. Jeynes, K. J. Kirkby, G. W. Grime

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The University of Surrey Ion Beam Centre has recently commissioned a new in-air scanning microbeam. The new external beam uses a magnetic quadrupole doublet to focus a beam-spot of μm dimensions on the vacuum exit window so that there are no beam defining apertures close to the analysis region. A pre-lens magnetic dipole allows beam scanning for measuring two dimensional elemental distributions. The scanned area is limited by the diameter of the exit window to 3 mm diameter at present. The sample is positioned using a front viewing video microscope and an alignment laser, and detectors for X-rays (high energy and low energy), backscattered particles and gamma rays are installed. This paper will detail the ion optical characteristics of the in-air scanning microbeam, and the methods used in the characterisation. A comparison between calculated optical properties of the in-air scanning microbeam, using the ray-tracing software TRAX, and the measured properties of the beam will be presented.

Original language	English
Pages (from-to)	26-31
Number of pages	6
Journal	Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
Volume	231
Issue number	1-4
DOIs	https://doi.org/10.1016/j.nimb.2005.01.029
Publication status	Published - Apr 2005

Keywords

In-air microbeam
Ion beam analysis
Nuclear microbeam

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10.1016/j.nimb.2005.01.029

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Merchant, M. J., Mistry, P., Browton, M., Clough, A. S., Gauntlett, F. E., Jeynes, C., Kirkby, K. J., & Grime, G. W. (2005). Characterisation of the University of Surrey Ion Beam Centre in-air scanning microbeam. Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 231(1-4), 26-31. https://doi.org/10.1016/j.nimb.2005.01.029

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title = "Characterisation of the University of Surrey Ion Beam Centre in-air scanning microbeam",

abstract = "The University of Surrey Ion Beam Centre has recently commissioned a new in-air scanning microbeam. The new external beam uses a magnetic quadrupole doublet to focus a beam-spot of μm dimensions on the vacuum exit window so that there are no beam defining apertures close to the analysis region. A pre-lens magnetic dipole allows beam scanning for measuring two dimensional elemental distributions. The scanned area is limited by the diameter of the exit window to 3 mm diameter at present. The sample is positioned using a front viewing video microscope and an alignment laser, and detectors for X-rays (high energy and low energy), backscattered particles and gamma rays are installed. This paper will detail the ion optical characteristics of the in-air scanning microbeam, and the methods used in the characterisation. A comparison between calculated optical properties of the in-air scanning microbeam, using the ray-tracing software TRAX, and the measured properties of the beam will be presented.",

keywords = "In-air microbeam, Ion beam analysis, Nuclear microbeam",

author = "Merchant, {M. J.} and P. Mistry and M. Browton and Clough, {A. S.} and Gauntlett, {F. E.} and C. Jeynes and Kirkby, {K. J.} and Grime, {G. W.}",

year = "2005",

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doi = "10.1016/j.nimb.2005.01.029",

language = "English",

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Merchant, MJ, Mistry, P, Browton, M, Clough, AS, Gauntlett, FE, Jeynes, C, Kirkby, KJ & Grime, GW 2005, 'Characterisation of the University of Surrey Ion Beam Centre in-air scanning microbeam', Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, vol. 231, no. 1-4, pp. 26-31. https://doi.org/10.1016/j.nimb.2005.01.029

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AU - Merchant, M. J.

AU - Mistry, P.

AU - Browton, M.

AU - Clough, A. S.

AU - Gauntlett, F. E.

AU - Jeynes, C.

AU - Kirkby, K. J.

AU - Grime, G. W.

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AB - The University of Surrey Ion Beam Centre has recently commissioned a new in-air scanning microbeam. The new external beam uses a magnetic quadrupole doublet to focus a beam-spot of μm dimensions on the vacuum exit window so that there are no beam defining apertures close to the analysis region. A pre-lens magnetic dipole allows beam scanning for measuring two dimensional elemental distributions. The scanned area is limited by the diameter of the exit window to 3 mm diameter at present. The sample is positioned using a front viewing video microscope and an alignment laser, and detectors for X-rays (high energy and low energy), backscattered particles and gamma rays are installed. This paper will detail the ion optical characteristics of the in-air scanning microbeam, and the methods used in the characterisation. A comparison between calculated optical properties of the in-air scanning microbeam, using the ray-tracing software TRAX, and the measured properties of the beam will be presented.

KW - In-air microbeam

KW - Ion beam analysis

KW - Nuclear microbeam

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Characterisation of the University of Surrey Ion Beam Centre in-air scanning microbeam

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