Now showing items 11-20 of 29
Approximate Isotopic Frequency Rule and Its Application to the Spectra of Complex Molecules
(The American Institute of Physics, 1960-06)
An isotopic frequency rule is derived which is valid to a good approximation for individual modes of fully substituted hydrogen‐containing groups in a complex molecule. It is given by λi/λ = 1 — (ΣjΔTj/ρT), where λ = 4π2ν2, ...
Transport in Dilute Gases and Chemical Forces
(The American Institute of Physics, 1960-06)
It is shown that the theory of transport phenomena in gases may be so formulated that the potentials characterizing the cross sections, which account for intractions between molecules in the binary collision limit, are the ...
Performance of a nuclear emulsion scanner
(Elsevier, 1960)
A machine has been constructed which meets many of the needs for scanning of nuclear emulsions as emulsions are used in charged particle nuclear spectroscopy. Methods developed for track detection are reviewed briefly. In ...
Total Collision Cross Sections for the Interaction of Molecular Beams of Cesium Chloride with Gases. Influence of the Dipole‐Dipole Force upon the Scattering
(The American Institute of Physics, 1960-08)
Total cross sections (Q) for the interaction of beams of CsCl with a number of molecules were measured using an apparatus of ca 4′ angular resolution in which the temperature of the scattering gas could be varied from ...
Ultralinear Cathode Follower
(The American Institute of Physics, 1960-09)
The design of a modified cathode follower circuit which possesses an extremely linear response and a voltage gain of essentially unity is presented. Analysis of the circuit shows that, in principle, the harmonic distortion ...
Experimental Investigation of a High‐Energy Density, High‐Pressure Arc Plasma
(The American Institute of Physics, 1960-02)
The underwater spark is utilized to study the fundamental parameters of a plasma at 30 000°K and 10 000 atmos pressure. The 25‐kv spark is obtained by underwater discharge of capacitors having a stored energy of 1800 joules, ...
Electron Diffraction Study of Monomethyl‐ and Dimethylphosphine
(The American Institute of Physics, 1960-03)
The structural parameters of gaseous monomethyl‐ and dimethylphosphine were determined by the sector‐microphotometer method of electron diffraction. Center of gravity bond distances and standard errors for the two molecules ...
A Simple Method for Improving the Accuracy of Cross‐Spectral Density Measurements
(The American Institute of Physics, 1960-09)
Electron Diffraction Study of the Structure of Trimethylphosphine
(The American Institute of Physics, 1960-02)
The structural parameters of gaseous trimethylphosphine, including standard errors, were found to be as follows: center of gravity bond distances were rCP=1.8465±0.003 A, and rCH=1.091±0.006 A; angles were <C☒P☒C=98.6±0.3°, ...