On the separation in skimmed molecular beams from free jet expansions of binary gas mixtures

An attempt was made to study the role played by the skimmer geometry on the degree of separation attained in binary jets. A spherically symmetric flow proceeding from a virtual source is considered as representing the free jets of a binary mixture expanding into a space occupied by an infinite wall at a certain distance from the source center. The problem posed is to determine the number density of each component of the binary gas mixture at a detector located at a given distance from the skimmer cone entrance. Numerical calculations were done on an IBM 370 computer for a free jet of a argon-helium mixture