2.1.4.3 Silicon Planar Dimensions and Masses for a 5 GW SPS This section presents the numerical details of the silicon planar design and the references from which they are taken. Solar Cells(4,p3.5) Material = Single Crystal Silicon Thickness = 50 microns Length = 7.7 cm Width = 6.4 cm Cover Plate(4,p5.73) Material = Fused Silica Thickness = 75 microns Length =1.17 meters Width = 1.10 meters Substrate(4,p5.73) Material = Fused Silica Thickness = 50 microns Length = 1.17 meters Width = 1.12 meters Panel to Wire Connectors Material = Aluminum Radius = .28 mm Length = 1.3 meters per panel Support Grid Wires The radius of these wires was chosen to yield the same total mass as the aluminum tape considered earlier. This radius is quite conservative; each wire bears a tension of less than 6 newtons. Material = Aluminum Radius = .688 mm Length = 2.30 meters per panel (average) Cell Interconnects(4,p5.73-5.81) Material = Aluminum Mass Estimate = 1.47E-2 kg/panel
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