title: Model calculations of the radiation dose and LET spectra on LDEF and comparisons with flight data.
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.
authors.affiliation: Science Applications International Corporation (SAIC), Prospect, TN 38477-6224, USA.
authors.forename: T W
authors.initials: TW
authors.lastname: Armstrong
authors.forename: B L
authors.initials: BL
authors.lastname: Colborn
authors.forename: E V
authors.initials: EV
authors.lastname: Benton
mesh_terms: D016880:Anisotropy; D002244:Carbon; D018534:Earth, Planet; D004583:Electrons; D019471:Elementary Particle Interactions; D005118:Extraterrestrial Environment; D018499:Linear Energy Transfer; D008962:Models, Theoretical; D010100:Oxygen; D011522:Protons; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation*; D011835:Radiation Protection; D011874:Radiometry; D013026:Space Flight / Q000295:instrumentation*; D018531:Spacecraft; D013819:Thermoluminescent Dosimetry
chemical_list: D011522:Protons; D002244:Carbon; D010100:Oxygen