Now showing items 21-30 of 30
Electron density measurements of argon surface-wave discharges
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1985-09)
The electron density of microwave-generated surface-wave discharges in argon have been measured using Stark broadening and calculated from the measured wavelengths of the standing surface wave. Results obtained from these ...
Production of 232 Pa from thorium
(Kluwer Academic Publishers; Akadémiai Kiadó ; Springer Science+Business Media, 1984-03)
A procedure is described for the accelerator production of 232 Pa and its isolation in radiochemically pure form, suitable for isotope tracing of protactinium/thorium chemical separations.
Intermediate and high-mass ion beams from a 10-cm Duopigatron
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1984-06)
Experimental studies of a 10-cm Duopigatron as a source of argon, krypton, and xenon ion beams are reported. Source plasma instabilities are examined, and the mass dependence of oscillation frequencies and instability onset ...
Energy deposition in metals by laser-guided discharges
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1983-12)
Experimental and theoretical results are reported concerning energy deposition on metal surfaces by laser-guided discharges (LGD) in argon and nitrogen at atmospheric pressure. These experiments have demonstrated effective ...
Applications of near-infrared FT-Raman spectroscopy in metamict and annealed zircon: oxidation state of U ions
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2004-09)
We report a near-infrared Fourier-transform (FT) Raman spectroscopic method to characterize the electronic transitions of U ions and the alpha-decay damage in natural zircon. The application is demonstrated by analyzing ...
Ultraviolet-induced flashover of a plastic insulator using a pulsed excimer laser
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1987-03)
Ultraviolet-induced flashover has been observed over stressed, angled, acrylic insulators illuminated by a short (60 ns) pulse of excimer laser light at 249 nm. Flashover has been observed at ultraviolet fluences of 5–65 ...
Direct measurement of k o for monitor neutron activation analysis
(Kluwer Academic Publishers; Akadémiai Kiadó ; Springer Science+Business Media, 1994-03)
This paper introduces the thermal column or the cold neutron guide beam of the 20 MW NBSR at the National Institute of Standards and Technology as a direct k o measurement facility. Measurement of k o at this facility not ...
Temperature and concentration dependence of diffusion coefficient in dilute solutions
(Elsevier, 1981-09)
Temperature and molecular weight dependence of kD in D(C) = D(O) [1 + CkD], where D(C) is the diffusion coefficient for the density fluctuations in a dilute polymer solution, is investigated by first expressing D(C) as a ...
Monte Carlo analysis of the backscattering of radiation from a sphere to a plane
(Elsevier, 1990-02)
A Monte Carlo method is described for computing the backscattering of radiation from a sphere situated above an emitting plane. Numerical results are given and compared with analytic bounds for this problem which were ...
Vibrational spectra, assignments and normal coordinate analyses for crystalline zirconium tetrachloride and tetrabromide
(Elsevier, 1981)
Raman and far-IR spectra have been obtained of crystalline ZrCl4 and ZrBr4. The observed frequencies have been interpreted on the basis of the C2h symmetry of the Bravais unit cell and have been subjected to a normal ...