Dielectric charging as a catalyst to the formation of potential barriers on synchronous orbit satellites
Young, Maude Elizabeth
Olsen, Richard C.
Maruyama, Xavier K.
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This thesis postulates deep dielectric charging of exterior spacecraft dielectrics as a mechanism responsible for the sunlit charging even observed on the ISEE1 spacecraft. Deep dielectric charging can cause a negative potential to develop on the insulating surfaces of the spacecraft, resulting in the information of a potential barrier capable of suppressing photo and secondary emission. These events can lead to overall negative charging of the spacecraft. Calculations were made using in situ measurements from onboard the ISEE1 and the SCATHA spacecraft. The results indicate, within the range of the data used, that this mechanism is a viable explanation for the ISEE1 charging event. This mechanism can be generalized to most synchronous orbit spacecraft.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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Olsen, R.C.; Whipple, E.C. (1988);Electrostatic cleanliness requirements on ISEE 1 were expected to prevent negative charging in sunlight. This has largely been true, but on three occasions, ISEE 1 has been observed to charge to significant negative potentials ...
Werner, Paul W. (Monterey, California : Naval Postgraduate School, 1988);Experiments in charge control were conducted on the P78-2 (SCATHA) satellite as part of a program on spacecraft charging at high altitudes. Experiments with the SCATHA ion gun were monitored by charged particle detectors ...
Smith, Donald S. (Monterey, California. Naval Postgraduate School, 1991-12);Deep dielectric charging is the suspected mechanism for formation of potential barriers aboard the ISEE-I spacecraft. Energetic electron distribution functions in the plasmasheet were examined for both surface and deep ...