The Bendix Corporation

Donald R Bianco

Keith A More

James E Rice

David J Nowak

An improved sealed proportional counter window for an X-ray spectrometer includes a metallic foil having high X-ray transmission characteristics and having an ultra thin plastic coating thereon for sealing the inherent porosity of the metallic foil. The plastic coated foil is suitably supported by an arrangement which provides a relatively high percentage of unobstructed counter window area.

Sensitivity proportional counter window

A grid gates a stream of ions when a D.C. potential is applied between two sets of interdigitated wires included in the grid to produce a D.C. field. The improved grid disclosed herein contains the two sets of interdigitated wires in a single plane so that the D.C. field is precisely normal to the ion current flow direction to prevent a residual ion current flow when the grid provides the gating effect.

Growing community of inventors

Ann Arbor, MI, United States of America

Donald R Bianco