Accession Number : AD0427739


Title :   RESEARCH ON THE ELECTROSTATIC GENERATION AND ACCELERATION OF SUBMICRON- SIZE PARTICLES


Descriptive Note : Final rept., Aug 1959-Apr 1963


Corporate Author : TRW SPACE TECHNOLOGY LABS REDONDO BEACH CA


Personal Author(s) : Cohen, E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/427739.pdf


Report Date : May 1963


Pagination or Media Count : 99


Abstract : Research involved in generating submicron-size positively charged liquid droplets is described. The droplets formed may be either liquid metal, or organic fluids. An analysis is developed to indicate the relationship between particle size and the parameters of field emission and surface tension. Charge/ mass ratios were obtained. Charge/mass distributions are shown for both metals and organic fluids. Although ions were often found, particularly with the metal fluids, narrow peak distributions of charge/mass could be obtained with no appreciable number of ions when using the organic liquids. The effect upon the charge/mass peak of the mass flow rate and the potential of the point emitter is demonstrated. The efficiency of an ion engine as a function of charge/mass distribution about a peak was evaluated for several typical curves.


Descriptors :   *PARTICLES , *DROPS , *ELECTRIC PROPULSION , IONS , PARTICLE SIZE , DETECTORS , ACCELERATION , ELECTRIC FIELDS , ION BEAMS , ELECTRICAL PROPERTIES , ELECTRON MICROSCOPY , FIELD EMISSION , ENERGY CONVERSION , CHLORIDES , SALTS , GENERATORS , OILS , ALCOHOLS , LIQUID METALS , ANTIMONY COMPOUNDS


Subject Categories : Electric and Ion Propulsion


Distribution Statement : APPROVED FOR PUBLIC RELEASE