University  of Calgary
Rapid  Deployment Airborne X-ray Project ( RDAX ) — PI: Dr. Christopher  Cully. High-energy  particles rain down into Earth's atmosphere every day. This "energetic  particle precipitation" can rapidly change the near-Earth space  environment and cause possible long-term effects, including climate effects. The RDAX project aims to quantify the amount and  distribution of high-energy particles deposited during geomagnetic storms by  using Canadian-made X-ray imagers placed on 15 high-altitude balloons. The  instrument will take images of high-energy particles striking the atmosphere.  The data will allow researchers to disentangle the causes of high-energy  particle precipitation and its effect on our environment.