Now showing items 11-20 of 40
Reactions of High‐Energy, Excited I128 Ions with Gaseous Molecules
(The American Institute of Physics, 1962-01-15)
The manner in which molecular additives inhibit the reaction of (n, γ) activated I128 with CH4 was determined in an effort to observe indirectly reactions of I128 with the additives. The data suggest that (1) O2, N2, and ...
Density in a Simple Model of the Exosphere
(The American Institute of Physics, 1962-09)
The particle density of a simple model of the exosphere is obtained by solving exactly the collisionless Boltzmann equation. The main point of the solution is that it is a discontinuous, multivalued function of the constants ...
Vibration-rotation interactions in infrared active overtone levels of spherical top molecules; 2[nu]3 and 2[nu]4 of CH4, 2[nu]3 of CD4
(Elsevier, 1962)
The theory of the vibration-rotation lines of the first overtones of the infrared active fundamentals of tetrahedral molecules has been re-examined. Theory predicts an overtone spectrum consisting of five P, Q, and R ...
Level structure of 32P from 31P(d, p)32P reactions
(Elsevier, 1962)
States up to an excitation energy of 6.8 MeV of the nucleus 32P are investigated by studying the angular distribution of protons in the reaction 31P(d, p)32P. One new state is found at 1.51 MeV. A state previously reported ...
On the Problem of Pulsed Oscillations in Ruby Maser
(The American Institute of Physics, 1962-01)
It is shown by means of a semiquantitative nonlinear analysis that elementary interaction between an inverted electron spin system and a resonant cavity does not give rise to the pulsed mode of operation of the ruby maser ...
An Analysis of the Maser Oscillator Equations
(The American Institute of Physics, 1962-04)
This paper analyses the maser oscillator equations which describe the interaction between the resonant cavity and the inverted population of the electron spin system of the paramagnetic substance. It is shown that these ...
Optical Measurement of Spectra of Two‐Dimensional Functions
(The American Institute of Physics, 1962-03)
The principle of an optical computer for the measurement of two‐dimensional spectral and cross‐spectral densities is described. The performance of one of the experimental arrangements is checked by measuring the spectral ...
Motion of Small Suspended Particles in Nonuniform Gases
(The American Institute of Physics, 1962-02-01)
The motion of small suspended particles in a gas or gas mixture containing gradients of temperature, pressure, or composition is derived as a special case of the Chapman‐Enskog kinetic theory of gases, by formally treating ...
Momentum Transfer to an Atom in a Molecule: Internal Excitation and Bond Dissociation
(The American Institute of Physics, 1962-02-15)
An atom will dissociate from a compound if the atom receives a recoil momentum greater than some average value Q0. Considering a polyatomic molecule as composed of point‐mass atoms, there is derived an equation which relates ...