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MEASUREMENT OF THE MASS AND CHARGE OF CHARGED PARTICLES

IP.com Disclosure Number: IPCOM000023086D
Original Publication Date: 1976-Aug-31
Included in the Prior Art Database: 2004-Mar-27

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a method for measurement of the mass and/or charge of a charged particle. The method involves inject~ ing the particle into a sampling device made up of a tube comprising a Faraday cage with a region of a grounded conductive material on either end of it. The particle to be analyzed flows through the tube in a stream of gas and as it passes through the Faraday cage it induces a charge on the cage wall, By measuring the magnitude of the induced charge or its duration in the Faraday cage, the magnitude of the charge on the particle or the mass of the particle can be determined,