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@Article{SchmittSukhPradBarb:2020:OpLoTh,
               author = "Schmitt, R. N. and Sukhanov, A. and Prado, Antonio Fernando 
                         Bertachini de Almeida and Barbosa, G.",
          affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Russian National 
                         Institute for Space Research} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Optimization of low thrust transfer orbits of a spacecraft 
                         considering the radiation hazard from the van allen belts",
              journal = "Advances in the Astronautical Sciences",
                 year = "2020",
               volume = "171",
                pages = "121--132",
             abstract = "The goal of this work is to measure the amount of radiation a 
                         spacecraft receives once it leaves the sphere of influence of 
                         Earth in a Low Thrust Orbit (LTO). The spacecraft crosses the Van 
                         Allen belts many times during the transfer, in which particles 
                         such as protons and electrons can damage the onboard electronic 
                         equipment. Through mathematically modeling of the density of 
                         particles from the belt in space, it was possible to integrate it 
                         in time and compute the total dose of radiation absorbed by the 
                         spacecraft according to the chosen trajectory. Therefore, 
                         different trajectories were computed varying in eccentricity and 
                         type of propulsion system, which gave the following final 
                         parameters of interest: mission duration, fuel consumption, time 
                         in Van Allen belts and total fluence of radiation absorbed. Using 
                         an optimization algorithm, thousands of trajectories were tested 
                         and the best ones with respect to the final parameters were given 
                         as a table of results.",
                 issn = "0065-3438.",
             language = "en",
        urlaccessdate = "29 mar. 2024"
}


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