Let’s assume this new X-ray technique is not actually an ordinary X-ray but really is a modification to a CT scan, since otherwise there’s no reason for them to compare it to an MRI.
A head CT scan delivers 40 mGy of radiation to an adult brain. The dose of background radiation the average human body gets per year in the US is 3.6 mGy. The average adult brain is 1400 cubic centimeters. The average adult body is 62000 cubic centimeters. 1400/62000 = 0.02258. So the brain is actually only exposed to 2.258% of 3.6 mGy of background radiation per year, which is 0.081288 mGy per year. 40/0.081288 = 492. This means a head CT scan is equivalent to 492 years worth of background radiation blasted into the brain in the span of 10 minutes.
A transatlantic flight exposes your entire body to 0.1 mGy of which your brain only receives 0.002258 mGy. 0.002258/0.081288 = 0.028, and 0.028*365 = 10.22. This means a transatlantic flight exposes your brain to 10 days worth of background radiation over the span of 20 hours.
A head CT scan delivers 40 mGy of radiation to an adult brain. The dose of background radiation the average human body gets per year in the US is 3.6 mGy. The average adult brain is 1400 cubic centimeters. The average adult body is 62000 cubic centimeters. 1400/62000 = 0.02258. So the brain is actually only exposed to 2.258% of 3.6 mGy of background radiation per year, which is 0.081288 mGy per year. 40/0.081288 = 492. This means a head CT scan is equivalent to 492 years worth of background radiation blasted into the brain in the span of 10 minutes.
A transatlantic flight exposes your entire body to 0.1 mGy of which your brain only receives 0.002258 mGy. 0.002258/0.081288 = 0.028, and 0.028*365 = 10.22. This means a transatlantic flight exposes your brain to 10 days worth of background radiation over the span of 20 hours.