Search Results - "READ, F. H"

Capacitances and singularities of the unit triangle, square, tetrahedron and cube by Read, F.H.

“…The boundary element method has been used to obtain the electrical capacitances of the unit equilateral triangle, square, regular tetrahedron and cube. For…”
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Improved Extrapolation Technique in the Boundary Element Method to Find the Capacitances of the Unit Square and Cube by Read, F.H.

“…Extrapolation of the numberNof subdivisions to infinity in the boundary element method involves fitting computed results to a polynomial in 1/N. A technique of…”
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Novel exploration of the helium (e, 2e) ionization process by MURRAY, A. J, READ, F. H

“…Absolute helium ({ital e},2{ital e}) differential cross sections have been measured over a more general range of directions of the outgoing electrons than has…”
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Stability criteria for a passive electrostatic non-relativistic charged particle storage device by Hammond, P, Reddish, T J, Alderman, A J, Tessier, D R, Read, F H

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Field enhancement factors of random arrays of carbon nanotubes by Read, F.H., Bowring, N.J.

“…The field enhancement factors of flat arrays of aligned, closed-end nanotubes have been determined by accurate computational modelling. Square and random…”
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Passive electrostatic recycling spectrometer of desk-top size for charged particles of low kinetic energy by Tessier, D R, Niu, Y, Seccombe, D P, Reddish, T J, Alderman, A J, Birdsey, B G, Read, F H, Hammond, P

“…A passive electrostatic recycling spectrometer for charged particles is described and demonstrated to store electrons with typical kinetic energies of tens of…”
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Field enhancement factors of one-dimensional and two-dimensional arrays of nanotubes by READ, F. H, BOWRING, N. J

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Aberrations caused by mechanical misalignments in electrostatic quadrupole lens systems by Baranova, L.A., Read, F.H.

“…Image aberrations resulting from small misalignments in quadrupole lenses multiplets have been analysed. Analytical formulas for the coefficients of the beam…”
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The charge-tube method for space-charge simulations by Read, F.H., Chalupka, A., Bowring, N.J.

“…The charge-tube method is an accurate way of assigning the space-charge of a beam in computational simulations of charged particle systems. The method is…”
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The contributions of stochastic coulomb interactions and collective space-charge field aberrations to spatial spreading in charged particle projection systems by READ, F. H, BOWRING, N. J

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Evolution from the coplanar to the perpendicular plane geometry of helium (e,2e) differential cross sections symmetric in scattering angle and energy by MURRAY, A. J, READ, F. H

“…Experimentally determined differential cross sections are presented for the ([ital e],2[ital e]) process in helium, in which the two outgoing electrons have…”
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The parallel cylindrical mirror analyzer: axis-to-axis configuration by Read, F.H, Cubric, D, Kumashiro, S, Walker, A

“…The operation of the parallel cylindrical mirror analyzer (PCMA) in the axis-to-axis configuration is described. A wide range of energies can be covered in the…”
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Field enhancement factors of one-dimensional and two-dimensional arrays of nanotubes by Read, F.H., Bowring, N.J.

“…The field enhancement factors of three different configurations of arrays of aligned, closed-end nanotubes have been determined by computational modeling: (1)…”
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Monte-Carlo calculation of Boersch energy spreading by Read, F.H, Bowring, N.J

“…The effects of electron–electron coulomb interactions have been simulated by a general computational technique that can be applied to almost any system,…”
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Computational simulation of an electrostatic aberration corrector for a low-voltage scanning electron microscope by Baranova, L.A, Read, F.H, Cubric, D

“…Two aspects of the design of electrostatic aberration correctors for low-voltage scanning electron microscopes are considered. The first is that of optimizing…”
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Comparison of FDM, FEM and BEM for electrostatic charged particle optics by Cubric, D, Lencova, B, Read, F.H, Zlamal, J

“…The accuracy and speed of three programs based on different methods for solving problems in electrostatic charged particle optics are compared, using a set of…”
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The contributions of stochastic coulomb interactions and collective space-charge field aberrations to spatial spreading in charged particle projection systems by Read, F.H., Bowring, N.J.

“…A new computational technique based on the `nearest-neighbor' method has been used to study the effects of stochastic electron–electron coulomb interactions on…”
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Displaced Electron Energies and the "Shake-Down" Effect by Read, F. H.

“…A brief review is given of the apparent exchanges of energy that can occur sometimes between the outgoing particles in electron-atom impact experiments, when…”
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Minimisation of the aberrations of electrostatic lens systems composed of quadrupole and octupole lenses by Baranova, L.A., Read, F.H.

“…Aberrations are investigated and compared for two types of multiplets based on electrostatic quadrupole and octupole lenses: “mid-acceleration” systems where…”
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Short- and long-range penetration of fields and potentials through meshes, grids or gauzes by Read, F.H, Bowring, N.J, Bullivant, P.D, Ward, R.R.A

“…When a conducting partially-transparent mesh is used to separate two regions of different electrostatic field strength there are short-range changes to the…”
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