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Aerospace 2017, 4(1), 16; doi:10.3390/aerospace4010016

An Improved Electron Pre-Sheath Model for TSS-1R Current Enhancement Computations

Department of Mechanical Engineering-Engineering Mechanics, The Michigan Technological University, Houghton, MI 49931, USA
Academic Editor: Konstantinos Kontis
Received: 6 February 2017 / Revised: 13 March 2017 / Accepted: 14 March 2017 / Published: 16 March 2017
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Abstract

This report presents improvements of investigations on the Tethered Satellite System (TSS)-1R electron current enhancement due to magnetic limited collections. New analytical expressions are obtained for the potential and temperature changes across the pre-sheath. The mathematical treatments in this work are more rigorous than one past approach. More experimental measurements collected in the ionosphere during the TSS-1R mission are adopted for validations. The relations developed in this work offer two bounding curves for these data points quite successfully; the average of these two curves is close to the curve-fitting results for the measurements; and an average of 2.95 times larger than the Parker-Murphy theory is revealed. The results indicate that including the pre-sheath analysis is important to compute the electron current enhancement due to magnetic limitations. View Full-Text
Keywords: space tether system; Parker-Murphy theory; current enhancement; pre-sheath model space tether system; Parker-Murphy theory; current enhancement; pre-sheath model
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Cai, C. An Improved Electron Pre-Sheath Model for TSS-1R Current Enhancement Computations. Aerospace 2017, 4, 16.

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