Now showing items 1-10 of 14
Particle Asymmetry Analyser
Calculation of the He-3(He-3, 2p)He-4 AND H-3(H-3, 2N)He-4 astrophysical S-factor at low energies
We have calculated the cross sections for the charge symmetric reactions He-3(He-3,2p)He-4 and He-3(He-3,2p)He-4 at sub-Coulomb energies in the potential model. Good agreement with the experimental data is obtained. The ...
Portable Particle Analysers
Analysis of Li-8(alpha, n)B-11 below the Coulomb barrier in the potential model
The reaction Li-8(alpha, n)B-11 is of interest in inhomogeneous big bang nucleosynthesis. A distorted wave Born approximation calculation employing folding potentials is presented for energies below the Coulomb barrier. ...
Time-dependence of the UV resonance lines in the cataclysmic variables YZ CNC, IR GEM and V3885-SGR
Orbital variations are observed in the UV resonance lines of YZ Cnc, IR Gem and V3885 Sgr. Optical spectroscopic observations of YZ Cnc show that the maximum absorption in the UV lines occurs about 0.7-0.8 orbits after the ...
Variability in the UV resonance lines of the cataclysmic variable V795 Herculis (PG-1711 + 336)
Variability in the UV resonance lines from the cataclysmic variable V795 Her is investigated on the basis of a total of 28 IUE SWP low-resolution spectra. Significant line profile fluctuations are evident in the C IV 1549 ...
The characterisation of airborne particles by analysis of spatial light scattering profiles
An instrument has been developed to investigate the potential characterisation of airborne particles, with particular reference to shape and size, by analysis of the spatial intensity distribution of scattered light. In ...
Airborne particle shape and size classification from spatial light scattering profiles
A new instrument for the study of airborne particles is described. The instrument incorporates a laminar flow sample delivery system which constrains airborne particles to traverse a focussed laser beam in single file. ...