Space Solar Power Review Vol 3 Num 2 1982

Cover	1
Table of Contents	100
Editors List	2
Editorial by John Freeman	3
Transmission of Mw Beamed-Power From An Orbiting Space Stations To The Ground by Welch, Davis and Cox	5
Abstract	5
I. Introduction	5
II, Computational Procedure	6
III. Microphysical Parameters	9
IV. Beam Geometry	12
V. Results	13
A. Beam Frequency	14
B. Cloud Temperature	16
C. Beam Nadir Angle	18
D. The Effect of Cloud Width	18
E. Cloud Vertical Dimensions	18
F. Drop Size Distribution	20
VI. Conclusions	23
References	24
Lunar Resource Benefaction By Magntic Separation by David Kelland	27
Magnetic Separation	27
Magnet Systems	31
Lunar Processing	34
Effect of Lunar Environment	35
References	37
A Parametric Study of Minimal Cost SPS Systems by AW LOve	39
Introduction	39
Microwave Relationships	40
Choice of a Distribution Function	42
Characteristics of the Magentron-Powered SPS	43
The General Cost Function	44
Conclusions	48
References	49
Ecospace II by Edward Finch	51
Abstract	51
Near-Term Outlook for Space Solar Power Societal Trends and TEchnological Options in the 1980s by Stephen Klineberg	57
Abstract	57
Introduction	57
The Energy Dilemma as a Social Issue	58
The Evolution of Public Opinion	59
A New Sense of Limits	60
The Reality of the Energy Crisis	60
The Distrust of Institutional Leadership	61
The New Skepticism about Science and Technology	61
The Strength of Environmental Concerns	62
The Social Context of Energy Decisions	63
Electricity Demand and Renewable Resources	64
The Longer-Term Outlook for SPS	67
Conclusion	68
References	69
Space Settlements and Extraterrestrial Resources - What Bnefits to SPS COnstruction? By Gordon Woodcock	73
Introduction	73
Background	73
The Typical Space Settlement Scenario	73
Purpose of This Paper	74
Transportation Costs and Habitat Economics	75
Simplified Cost Parameters for Large Habitats	77
Crew Requirements	81
Design Considerations	82
Evaluation	83
Lunar Resources	84
Cost Predictability; Comparison of Parametric and Detailed Estimating	85
The "Back Door" Approach	87
Discussion and Analysis	87
Examples.	94
Evolutionary Paths	96
Research Recommendations	96
Concluding Remarks	97
References	98

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