Active Tissue Equivalent Dosimeter: A Tissue Equivalent Proportional Counter flown onboard the International Space Station

The Active Tissue Equivalent Dosimeter (ATED) is a low-cost, easy-to-use and compact tissue equivalent proportional counter designed for use aboard spacecraft, satellites, aircraft, unmanned aerial vehicles high-altitude balloons. ATED was rigorously tested at particle accelerator facilities utilizing heavy ions of charge energy similar to Galactic Cosmic Rays (GCRs). Upon completion the ground-based testing calibration, operated International Space Station (ISS) during July–August 2018. measurements from ISS were then analyzed in terms time, latitude, longitude, altitude order correlate with radiation fields orbit. When correlated orbital position, elevated absorbed dose rates due South Atlantic Anomaly (SAA) clearly evident. also separated based on their location into three different regions. results 2018 flight show that functioned as while onboard ISS. hypothesis lineal linear transfer can be used interchangeably by TEPC Low Earth Orbit (LEO) measurements. Lastly, direct comparison made between (LET) converted spectra spherical LEO model-calculated LET values. Such highly challenging TEPCs cylindrical geometry previously space.