Accession Number:

AD0293913

Title:

PROPELLANTS FOR ELECTRICAL PROPULSION ENGINES OF THE CONTACT OR BOMBARDMENT ION TYPE

Descriptive Note:

Corporate Author:

ROCKETDYNE CANOGA PARK CALIF

Personal Author(s):

Report Date:

1962-11-16

Pagination or Media Count:

1.0

Abstract:

Materials and methods for producing molecular ions and a colloidal ion beam suitable for use in electrical propulsion devices are investigated. The molecular compounds were selected for study primarily on a basis of expected favorable ionization characteristics and high structural stability to fragmentation. A theoretical analysis of a colloid producing system which utilizes a convergent-divergent nozzle for rapid condensation of propellant is presented. Electrical charging of the droplets is accomplished by ionizing a fraction of the propellant vapor prior to expansion through the nozzle. A graphical approach for obtaining approximate thermodynamic conditions necessary to adiabatically condense propellant vapors in a typical colloid generating system is introduced. Experimental results from operation of a charged, mercury colloid generator are presented. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE