Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2827106
Title: Figures of merit for focusing mega-electron-volt ion beams in biomedical imaging and proton beam writing
Authors: Ren, M. 
Whitlow, H.J.
Sagari A. R., A.
Van Kan, J.A. 
Osipowicz, T. 
Watt, F. 
Issue Date: 2008
Citation: Ren, M., Whitlow, H.J., Sagari A. R., A., Van Kan, J.A., Osipowicz, T., Watt, F. (2008). Figures of merit for focusing mega-electron-volt ion beams in biomedical imaging and proton beam writing. Journal of Applied Physics 103 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2827106
Abstract: A figure of merit (FOM) has been developed for focusing quadrupole multiplet lenses for ion micro- and nanobeam systems. The method which is based on measurement of the central peak of the two-dimensional autocorrelation function of an image provides separate FOM for the horizontal and vertical directions. The approach has been tested by comparison with the edge widths obtained by nonlinear fitting the edge widths of a Ni grid and found to be reliable. The FOM has the important advantage for ion beam imaging of biomedical samples that the fluence needed is considerably lower than for edge fitting. © 2008 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/96630
ISSN: 00218979
DOI: 10.1063/1.2827106
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