Now showing items 41-50 of 177
Erratum: Calculation of Photon‐Absorption Coefficient in Laser‐Produced Hydrogen Plasmas
(The American Institute of Physics, 1972-05)
Interdiffusion in dilute polymer mixtures. A subtle concentration effect
(The American Institute of Physics, 1994-08-15)
Dynamic light scattering has been used to investigate the diffusional dynamics in very dilute polystyrene/poly(propylene oxide), PS/PPO, polymer blends. Compared to previous investigations in the field, this system is more ...
Nuclear aerosol behavior during reactor accidents
(Elsevier, 1990)
Some early reactor accidents are recalled together with their associated environmental consequences. One such consequence is the generation of radioactive aerosol. We describe the various physical processes that such an ...
Photon transport theory
(Elsevier, 1961-08)
A first order, momentum-configuration space transport equation for photons is derived for low energy (nonrelativistic) systems. The derivation is first order in the sense that the transition probabilities characterizing ...
Experimental validation of the DPM Monte Carlo code using minimally scattered electron beams in heterogeneous media
(IOP Publishing Ltd, 2002-06-07)
A comprehensive set of measurements and calculations has been conducted to investigate the accuracy of the Dose Planning Method (DPM) Monte Carlo code for electron beam dose calculations in heterogeneous media. Measurements ...
Motion of a charged particle in a randomly varying magnetic field
(Elsevier, 1985-07)
The motion of a charged particle in a randomly varying uniform magnetic field is investigated. Stability of the mean position and mean square displacement are determined rigorously in the case of random binary variations ...
The cylindrical cell approximation in thermal utilization
(Elsevier, 1967-01)
In solving the neutron diffusion equation in one cell of an infinite lattice, a common procedure is to replace the rectangular (or hexagonal) cell with an equivalent cylindrical cell. In order to estimate the effect of ...
A thin target approach for portal imaging in medical accelerators
(IOP Publishing Ltd, 1998-08-01)
A new thin-target method (patent pending) is described for portal imaging with low-energy (tens of keV) photons from a medical linear accelerator operating in a special mode. Low-energy photons are usually produced in the ...
Calculated gamma ray photofractions for well-type scintillation detectors
(Elsevier, 1966-03)
Monte Carlo calculations for the photofractions of well-type gamma ray scintillation crystals are described. Leakage of secondary gamma rays, bremsstrahlung and electrons is considered. Calculated photofractions are tabulated ...
The finite element response matrix method for the solution of the neutron transport equation
(Elsevier, 1986)
The finite element response matrix method has been applied to the solution of the neutron transport equation. This method has previously been applied to the neutron diffusion equation for coarse mesh reactor analysis with ...