Model calculations of the radiation dose and LET spectra on LDEF and comparisons with flight data |
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Authors: | Armstrong T W Colborn B L Benton E V |
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Affiliation: | Science Applications International Corporation (SAIC), Prospect, TN 38477-6224, USA. |
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Abstract: | Ionizing radiation environment models, a 3-D spacecraft mass model, and radiation transport codes have been used to predict the radiation dose and linear energy transfer (LET) spectra measured at various locations on the LDEF satellite. The predictions are compared with thermoluminescent dosimeter measurements of the trapped proton and electron doses and with LET spectra measured by plastic nuclear track detectors. The predicted vs observed comparisons indicate some of the uncertainties of present ionizing radiation environment models for low Earth-orbit missions. |
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