title: A space radiation shielding model of the Martian radiation environment experiment (MARIE).
abstract: The 2001 Mars Odyssey spacecraft was launched towards Mars on April 7, 2001. Onboard the spacecraft is the Martian radiation environment experiment (MARIE), which is designed to measure the background radiation environment due to galactic cosmic rays (GCR) and solar protons in the 20-500 MeV/n energy range. We present an approach for developing a space radiation-shielding model of the spacecraft that includes the MARIE instrument in the current mapping phase orientation. A discussion is presented describing the development and methodology used to construct the shielding model. For a given GCR model environment, using the current MARIE shielding model and the high-energy particle transport codes, dose rate values are compared with MARIE measurements during the early mapping phase in Mars orbit. The results show good agreement between the model calculations and the MARIE measurements as presented for the March 2002 dataset.
authors.affiliation: The Boeing Company, Houston, TX 77058-3556, USA. bigshot@houston.rr.com
authors.forename: W
authors.initials: W
authors.lastname: Atwell
authors.forename: P
authors.initials: P
authors.lastname: Saganti
authors.forename: F A
authors.initials: FA
authors.lastname: Cucinotta
authors.forename: C J
authors.initials: CJ
authors.lastname: Zeitlin
mesh_terms: D003198:Computer Simulation; D003359:Cosmic Radiation; D018535:Mars; D008962:Models, Theoretical; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation; D011835:Radiation Protection; D019445:Solar Activity; D013026:Space Flight / Q000295:instrumentation*; D018531:Spacecraft / Q000295:instrumentation