Search Results - "Buckman, S. J."

Near-Threshold Ionization of Argon by Positron Impact by Babij, T J, Machacek, J R, Murtagh, D J, Buckman, S J, Sullivan, J P

“…The direct single-ionization cross section for Ar by positron impact has been measured in the region above the first ionization threshold. These measurements…”
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A joint theoretical and experimental study for elastic electron scattering from 1,4-dioxane by Palihawadana, P, Sullivan, J P, Buckman, S J, Masín, Z, Gorfinkiel, J D, Blanco, F, García, G, Brunger, M J

“…We present results of measurements and calculations of elastic electron scattering from 1,4-dioxane in the energy range of 0-1000 eV. Absolute differential and…”
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Absolute elastic cross-sections for low-energy electron scattering from tetrahydrofuran by Colyer, C J, Vizcaino, V, Sullivan, J P, Brunger, M J, Buckman, S J

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Electron collisions with laser cooled and trapped metastable helium atoms : Total scattering cross sections by UHLMANN, L. J, DALL, R. G, TRUSCOTT, A. G, HOOGERLAND, M. D, BALDWIN, K. G. H, BUCKMAN, S. J

“…Absolute measurements of total scattering cross sections for low energy (5-70 eV) electrons by metastable helium (2(3)S) atoms are presented. The measurements…”
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Absolute collision cross sections for low energy electron scattering from NO: the role of resonances in elastic scattering and vibrational excitation by Jelisavcic, M, Panajotovic, R, Buckman, S J

“…Absolute measurements of elastic scattering and vibrational excitation of the NO molecule by low energy electron impact (0.4-2.5 eV) are presented. They show…”
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Infrared Auroral Emissions Driven by Resonant Electron Impact Excitation of NO Molecules by Campbell, L., Brunger, M. J., Petrovic, Z. Lj, Jelisavcic, M., Panajotovic, R., Buckman, S. J.

“…Although only a minor constituent of the earth's upper atmosphere, nitric oxide (NO) plays a major role in infrared auroral emissions due to radiation from…”
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Molecular collisions, photoionization and dynamics: honouring Professor Vincent McKoy by Bettega, M. H. F., Buckman, S. J., Khakoo, M., Limão-Vieira, P., Varella, M. T. do N.

“…The topical issue “Advances on Molecular Collisions, Photoionization and Dynamics” encompasses a set of theoretical and experimental contributions honouring…”
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Metastable helium: a new determination of the longest atomic excited-state lifetime by Hodgman, S S, Dall, R G, Byron, L J, Baldwin, K G H, Buckman, S J, Truscott, A G

“…Exited atoms may relax to the ground state by radiative decay, a process which is usually very fast (of order nanoseconds). However, quantum-mechanical…”
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Positron kinetics in an idealized PET environment by Robson, R. E., Brunger, M. J., Buckman, S. J., Garcia, G., Petrović, Z. Lj, White, R. D.

“…The kinetic theory of non-relativistic positrons in an idealized positron emission tomography PET environment is developed by solving the Boltzmann equation,…”
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A high flux, liquid-helium cooled source of metastable rare gas atoms by SWANSSON, J. A, BALDWIN, K. G. H, HOOGERLAND, M. D, TRUSCOTT, A. G, BUCKMAN, S. J

“…We have developed a novel, high flux source of metastable rare gas atoms (helium, neon and argon) that uses liquid helium cooling to reduce the initial atomic…”
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An experimental and theoretical study of transient negative ions in Mg, Zn, Cd and Hg by Sullivan, J P, Burrow, P D, Newman, D S, Bartschat, K, Michejda, J A, Panajotovic, R, Moghbelalhossein, M, McEachran, R P, Buckman, S J

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Low-energy electron and positron transport in gases and soft-condensed systems of biological relevance by White, R.D., Tattersall, W., Boyle, G., Robson, R.E., Dujko, S., Petrovic, Z.Lj, Bankovic, A., Brunger, M.J., Sullivan, J.P., Buckman, S.J., Garcia, G.

“…We present a study of electron and positron transport in water in both the gaseous and liquid states using a Boltzmann equation analysis and a Monte-Carlo…”
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Low energy positron interactions with uracil--total scattering, positronium formation, and differential elastic scattering cross sections by Anderson, E K, Boadle, R A, Machacek, J R, Chiari, L, Makochekanwa, C, Buckman, S J, Brunger, M J, Garcia, G, Blanco, F, Ingolfsson, O, Sullivan, J P

“…Measurements of the grand total and total positronium formation cross sections for positron scattering from uracil have been performed for energies between 1…”
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Single-mode hollow optical fibres for atom guiding by DALL, R. G, HOOGERLAND, M. D, TIERNEY, D, BALDWIN, K. G. H, BUCKMAN, S. J

“…We present a novel design for a single-mode, hollow optical fibre, which is suitable for use as a waveguide for atomic de Broglie waves. The design,…”
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Positron transport in water vapour by Bankovi, A, Dujko, S, White, R D, Marler, J P, Buckman, S J, Marjanovi, S, Malovi, G, García, G, Lj Petrovi, Z

“…Transport properties of positron swarms in water vapour under the influence of electric and magnetic fields are investigated using a Monte Carlo simulation…”
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Metastable Helium: A New Determination of the Longest Atomic Excited-State Lifetime by Hodgman, S. S., Dall, R. G., Byron, L. J., Baldwin, K. G. H., Buckman, S. J., Truscott, A. G.

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Monte Carlo simulation of non-conservative positron transport in pure argon by Šuvakov, M, Petrović, Z Lj, Marler, J P, Buckman, S J, Robson, R E, Malović, G

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Low-energy positron interactions with xenon by Machacek, J R, Makochekanwa, C, Jones, A C L, Caradonna, P, Slaughter, D S, McEachran, R P, Sullivan, J P, Buckman, S J, Bellm, S, Lohmann, B, Fursa, D V, Bray, I, Mueller, D W, Stauffer, A D

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Observation of threshold effects in positron scattering from the noble gases by Jones, A C L, Caradonna, P, Makochekanwa, C, Slaughter, D S, McEachran, R P, Machacek, J R, Sullivan, J P, Buckman, S J

“…Channel coupling is a phenomenon that has been investigated for many scattering processes, and is responsible for the formation of cusps or steps in the cross…”
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Current prospects on Low Energy Particle Track Simulation for biomedical applications by Fuss, M.C., Sanz, A.G., Muñoz, A., Blanco, F., Brunger, M.J., Buckman, S.J., Limão-Vieira, P., García, G.

“…The Low Energy Particle Track Simulation code is a radiation interaction simulation tool specifically designed to describe electron and positron interactions…”
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