β Scribed by B. van Der Sijde; S. Adema; J. De Haas; C. J. M. Denissen; M. J. F. van De Sande
No coin nor oath required. For personal study only.
Thomson scattering with a 1.5 ms long pulse mode 20 J ruby laser has been applied to a radiative argon plasma with electron densities n~e~ from 2.5 10^19^ m^β3^ to 1.5 10^20^ m^β3^ and an electron temperature T~e~ of about 3 eV. Photon counting techniques have been used. The accuracy of n~e~ and T~e~ to be reached is about 5% after 10 shots. The signal to noise ratio S/N has been optimized by the use of optical filters and a special purpose grating. The effects of these elements on S/N have been calculated. The entrance angle, transmission and quantum efficiency have also been optimized. A comparison between 5 possible laser systems, including a normal mode and a Qβswitched mode ruby laser, has been carried out.
π SIMILAR VOLUMES
In this paper, we present a numerical method for solving the radiative transfer equation that models electromagnetic wave propagation in a constant background, plane-parallel medium containing randomly distributed, identically sized, dielectric spheres. Applications of this study include optical wav