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Advanced Prediction Methods of Satellite Lifetime

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Advanced Prediction Methods of Satellite Lifetime Powered By Docstoc
					                                                                                                                                                                                               Before Irradiaiton
                                                                                                                                                                                               2MeV-e, 3 1016/cm2
                          Anti-Reflecion Coating
                                                                                                                                                              GaAs                             3MeV-p, 1 1014/cm2
                                                                                                                                    100
       InGaP Cell                              Surface Electrode                                                                                                                               Simulation Results
                                                                                                                                                InGaP                                   Ge
                                                                                                                                         80
0.5 m




                                                                                                                Quantum Efficiency (%)
                                                                                                                                                                       Before Irradiaiton
       5 m                                   GaAs Cell
                                                                                                                                         60



140 m                                 Ge Cell (Substrate)                                                                                40
                                                                                                                                                                          2MeV Electrons
                                                    Back Elctrode
                                                                                                                                         20
                                                                                                                                                                              3MeV Protons

                                                                                                                                          0
                                                                                                                                              0.4       0.6     0.8     1.0       1.2        1.4    1.6    1.8
                          (a) Short-Circuit Current I SC                (b) Open-Circuit Voltage VOC
                                                                                                                                                                      Wavelength ( m)
                    1.0                                           1.0


                    0.9                                           0.9
 Normalized Value




                    0.8                                           0.8


                    0.7                                           0.7


                    0.6                                           0.6
                                      30keV
                                      150keV                                          : Experimental
                    0.1               3MeV                        0.5
                                                                                      : Simulation
                                      10MeV
                     0                                            0.4
                          0    1010   1011   1012   1013   1014         0    1010   1011   1012   1013   1014
                                                      Proton Fluence (/cm2)

				
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posted:11/21/2011
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