Accession Number:

ADA026591

Title:

Analytical Calculations on Photoelectron-Induced Currents on a Model of the FLTSATCOM Satellite.

Descriptive Note:

Final rept.,

Corporate Author:

DIKEWOOD INDUSTRIES INC ALBUQUERQUE N MEX

Personal Author(s):

• Marin,L.
• Lee,K. S. H.
• Liu,T. K.

Report Date:

1976-05-01

Pagination or Media Count:

61.0

Abstract:

From a rigorous integral-equation formulation a simplified integro-differential equation is derived for the induced current on the boom of a FLTSATCOM satellite with the solar panels and the central cylinder replaced by some appropriate localized generators and lumped impedances driving and loading the bool. The induced currents result partly from 1 the motion of the photoelectrons near the satellite and partly from 2 the redistribution of the positive charges left behind by the ejected electrons. The simplified equation for the case of one moving electron is solved by the method of asymptotic espansion explicit quasi-static as well as dynamic results are found both in time and frequency domain. It is found that the lowest resonance mode together with the quasi-static solution is sufficiently accurate for the photoelectron induced currents on the FLTSATCOM satellite. The quasi-static solution for one electron is also utilized to obtain the low-fluence result for a given incident photon pulse, a given yield function electrons per photon, and a given angular and energy distribution of the ejected electrons. Throughout the report, the results computed from explicit analytical solutions are graphically presented and physically interpreted. Author

Descriptors:

• *COMMUNICATION SATELLITES
• *PHOTOELECTRONS
• *INTERNAL ELECTROMAGNETIC PULSES
• INTERACTIONS
• NUCLEAR RADIATION
• ELECTRONS
• INTEGRAL EQUATIONS
• RADIATION EFFECTS
• SOLAR PANELS

Subject Categories:

• Nuclear Radiation Shielding, Protection and Safety
• Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE