Keywords:
Experimental, Radioprotection / Radiation dose, Dosimetry, Biological effects
Authors:
T. Squire; ACT/AU
DOI:
10.26044/ranzcr2019/R-0012
Methods and materials
We investigated radiobiological factors which could be present during torpor and hypothesised their interaction with cosmic radiation. A model of radioresistance with variation in circadian rhythm and temperature was generated.
To investigate the effect of decreasing transit time to limit astronaut radiation exposure we used the General Mission Analysis Tool (GMAT). We compared chemical Fig. 3, nuclear Fig. 4 and electrical Fig. 5 propulsion systems with equal mass to create a reasonable comparison Table 1.
Transit times from Earth to Mars using chemical, nuclear and electrical propulsion systems were then input into the Online Tool for Assessment of Radiation in Space (OLTARIS) simulator provided by the National Aeronautics and Space Administration (NASA). A 6mm aluminium lithium alloy sphere surrounding the phantom was utilised to model the spacecraft hull in free space Fig. 6. Simulation conditions were based on data received during the transit of the Mars Curiosity Rover at a period of Solar maximum.