Computation of Ion Collection by a Large Rocket-Mounted Mass-Spectrometer Plate at a Large Drawing-in Potential.
Final rept. 28 Apr 71-30 Jun 72,
MOUNT AUBURN RESEARCH ASSOCIATES INC NEWTON UPPER FALLS MASS
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Calculations of the ion current density at the central point of a charged mass-spectrometer plate mounted on a rocket were extended into the regime of very small Debye lengths. Since self-consistent solutions are numerically difficult to obtain in this regime especially for large dimensionless drawing-in potentials, the investigation was carried out with the aid of a linearized-space-charge model. Use of the model provides a potential distribution characterized by a Debye-length-like parameter lambdaH. The nature of the ion trajectories in the strong electric field is studied, and correlations between lambdaH and the true Debye length are discussed. Author
- Atmospheric Physics