Now showing items 21-23 of 23
Quantum Mechanical (Phase Shift) Analysis of Differential Elastic Scattering of Molecular Beams
(The American Institute of Physics, 1960-09)
For a spherically symmetrical intermolecular potential V(r)=ϵf(r/σ) the quantum calculation of the elastic scattering cross section dσ(Θ)/dΩ in the c.m. system is carried out as follows. For a given relative velocity (or ...
Improved Slotted Disk Type Velocity Selector for Molecular Beams
(The American Institute of Physics, 1960-08)
A slotted disk type mechanical velocity selector, 10 cm long and 16 cm in diameter, consisting of six disks has been constructed and tested. The velocity resolution corresponding to the half‐intensity width is 0.047; no ...
Differential‐Operator Approximations to the Linear Boltzmann Equation
(The American Institute of Physics, 1960-09)
A measure of deviation from equilibrium of an ensemble of particles is proposed, which is physically appropriate and of especially simple form when expressed in terms of the expansion coefficients of the ensemble distribution ...