ATTACHMENT : include the -featherweight CLEFT cell and lightweight blankets based on this cell. Use o-f the 100X miniature cassegranian concentrator is compatible with silicon, GaAs and advanced solar cells and not only reduces array cost but also raises efficiency and increases radiation tolerance. Advanced concepts to raise efficiency above 0.3 are also discussed. Parabolic mirrors could focus and collect either sunlight or laser radiation at high efficiency. From such heat sources at 1700-2200 K, several competitive concepts can generate electric power. Power can reach 30 kW/m(m) of radiator area or, al ternative1y, efficiency can exceed 50Z. For microwave power transmission over geostationary distances, wavelength must be reduced to 0.1 mm (by a factor of 1000) if collector area is to improve substantially over that of sunlit photovoltaic arrays. Lasers matched in wavelength to GaAs photovoltaic arrays appear capable of providing electric power exceeding 1 kW/kg of array mass. Title: Solar-pumped lasers for space power transmission Source: Proceedings of the AFOSR Special Conference on Prime-Power for High Energy Space Systems, Norfolk, Virginia, USA, Feb. 22-25, 1982. (Paper No. VI-5) Authors: Conway, Edmund J.; (NASA Langley Research Center, Hampton, VA 23665> Keywords: space energy conversion, lasers, transportation, Abstract: The concept of spacecraft-to-spacecraft laser power transmission is being considered as a means of achieving plentiful, economical power in space. Several direct solar-pumped laser concepts are discussed, as well as the results of early experiments. Novel 1aser-to-e1ectric power converters and a laser ATTACHMENT : thermal propulsion concept are identified. Advantages of the solar laser power platform for possible military requirements are described. Title: Study of Laser Heated Propulsion Devices. Part 2: Assessment of Laser Propulsion Modeling and Simulation Requirements Source: NAS 1.26:170626; LMSC-HREC-TR-D784744-PT-2; NASA-CR-170626 Authors: Thoenes, J. Keywords: lasers, transportation Abstract: in English, 47p Title: Study of Laser Heated Propulsion Devices. Part 1: Evaluation of Laser Devices, Fuels and Energy Coupling Mechanisms Source: NAS 1.26:170625; LMSC-HREC-TR-D784744-PT-1; NASA-CR-170625 Authors: Hofer, O.C. Keywords: lasers, transportation Abstract: in English, 77p
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