RADIATION/PARTICAL TRANSPORT

Since 1967, ARCON has been a pioneer in the development of particle transport theory techniques and their applications to the transport of electrons, protons, neutrons and gamma radiation. The practical applications of this research range from ensuring the reliability of air and space-borne-communications systems in a radiation environment to accurate predictions of the location, extent, and effects of airborne radioactive particles.

Research and Development in

Effects of ionizing radiation (electrons, heavy ions, protons, alpha particles, x-rays, and gamma rays) on microelectronic device materials
Atomic displacement damage in microelectronic device materials
Charge and electric field build-up in dielectric materials
Analytical benchmark tests of approximate transport theory calculation methods
Molecular dynamics calculations of atomic displacement effects in silicon
Simulation calculations of energy and charge deposition in various scintillation detectors undergoing electron and proton bombardment in space
Radiation Dosimetry
Analytical and numerical solutions of the Boltzmann and Fokker-Planck transport equations

Representative Publications List:

"Monoenergetic Neutral Particle Transport in an Anisotropically Scattering Half-Space", (with B. D. Ganapol and J. C. Garth), Am. Nucl. Soc.Proc. Int’l. Conf. on Mathematics and Computation, Reactor Physics and Environmental Analyses, ISBN 0-89448-198-3, 1187 (April 1995).

"Application of Chandrasekhar’s Method to a Radiation Dosimetry Problem", (with J. C. Garth), Trans. Am. Nuc. Soc., 71, 233 (1994).

"Electron Transport and Impact Ionization in SiO2", (with J. N. Bradford), Proc. 2nd RADECS European Conf., 161, (1993).

"Model for Space Charge Evolution and Dose in Irradiated Insulators at High Electric Fields",(with A. R. Frederickson and J. C. Garth), IEEE Trans. Nucl. Sci., 40, 1393 (1993).

"Analytical Neutral Particle Benchmarks in Half-Space Geometry", (with B. D. Ganapol and J. C. Garth), Proc. Joint Int'l. Conf. Math. Methods & Supercomputing in Nuclear Applications, 2, 284 (1993).

"A Continuous Energy Benchmark for Neutral Particle Motion in a Semi-Infinite Medium", (with B. D. Ganapol and J. C. Garth), Proc. Joint Int'l. Conf. Math. Methods & Supercomputing in Nuclear Applications, 2, 272 (1993).

"Impact Ionization in the Presence of Strong Electric Fields in Silicon Dioxide", (with J. N. Bradford), Radiation Effects and Defects in Solids, 117, 227 (1991).

"Discrete Ordinates Calculations of Low Energy Electron Transport in Silicon Dioxide in the Presence of an Electric Field", (with J. N. Bradford), Proc. International Top'l. Mtg. on Adv. in Mathematics, Computations and Reactor Physics, 2, 7.2, (April 1991).

"Multigroup-S_N Benchmark Comparison for Electron Transport", (with B. D. Ganapol and J. C. Garth), Proc. International Top'l. Mtg. on Adv. in Mathematics, Computations and Reactor Physics, 5, 30.1, (April 1991).

"Electron-acoustic phonon scattering in SiO₂ determined from a pseudo-potential for energies of EE ", (with J. N. Bradford), J. Appl. Phys. 70 (1) 490, (1991).

"Three-Dimensional Multiregion SN Solutions of the Spencer-Lewis Electron Transport Equation", (with W. L. Filippone, S. P. Monahan and J. C. Garth), Nucl. Sci. Eng., 105, No.1, 52, (1990).

"Smart Scattering Matrices for Single Collision Electron Monte Carlo Calculations", (with W.L. Filippone), Nucl. Sci. Eng., 100, No.3, 201, (1988).

"Two-Dimensional Transport Equation Calculations of Dose Profiles Due to Electron Beam Irradiation", (with W.L. Filippone, J.C. Garth) IEEE Trans. Nucl. Sci., NS-34, No.6, 1564 (December, 1987).

"Comparison of ONETRAN Calculations of Electron Beam Dose Profiles with Monte Carlo and Experiment", (with J.C. Garth), IEEE Trans. Nucl. Sci., NS-34, No.6, 1551, (December 1987).

"Monte Carlo Simulation and Analysis of Elastic and Inelastic Scattering of Electrons in Insulators", (with J.N. Bradford), IEEE Trans. Nucl. Sci., NS-34, No.6, 1392, (December 1987).

"Smart Scattering Matrices for Single Collision Electron Monte Carlo Calculations", (with W.L. Filippone), Proc. Int'l. Top'l. Mtg. on Advances in Reactor Physics, Mathematics and Computation, 1, 389, (April 1987).

"The Streaming Ray Formulation of Electron Transport", (with W.L. Filippone, M.S. Smith, J.C. Garth), Nucl. Sci. Eng., 95, No.1, 22, (1987).

"Comparison of ONETRAN Calculations with Cobalt-60 Dose Profile Data to Determine the Photon Spectrum", (with J.C. Garth), IEEE Trans. Nuc. Sci., NS-33, No.6, 1252, (1986).

"Electron Transport Calculational Methods for a Plane Source Embedded in an Infinite Medium", (with W.L. Filippone, B.D. Ganapol, J.C. Garth), Nucl. Sci. Eng., 92, No.1, 110, (1986).

"Displacement Damage and Dose Enhancement in Gallium Arsenide and Silicon", (with J.C. Garth and E.A. Burke), IEEE Trans. Nuc. Sci., NS-32, No.6, (1985).

"Electron Transport Calculational Methods for a Plane Source Embedded in an Infinite Medium", (with W.L. Filippone, B.D. Ganapol, J.C. Garth), Proc. ANS Top'l. Mtg. on Advances in Nuclear Engineering Computational Methods, ISBN:0-89448-117-7, Knoxville, TN, I, 788, (1985).

"Monte Carlo Calculations of Irradiation Test Photon Spectra", (with E.A. Burke), IEEE Trans. Nuc. Sci., NS-31, No. 6, 1089, (1984).

"Photon Spectra in Co-60 Gamma Test Cells", (with A.R. Frederickson), IEEE Trans. Nuc. Sci., NS-30, No.6, 4371, (1983).