NATS 1945 Lecture Notes - Lecture 4: Big Bang, Northern Canada, Rems
31 Oct 2017
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Cosmic rays: radiation received from sources in space (e. g. exploding stars, explosions fro(cid:373) the su(cid:374)"s surfa(cid:272)e, et(cid:272). (cid:895) Aurora are most commonly seen at high latitudes like in northern canada because. Earth"s (cid:373)ag(cid:374)eti(cid:272) field is the stro(cid:374)gest at the poles a(cid:374)d that"s (cid:449)here the cr become most concentrated. Doe increases with altitude, causing more exposure during air travel (up to ~0. 01 rem per flight) Since cr weaken intensity, the higher up you go in our atmosphere you go, the more cr you will be exposed too. Meaning, people who travel frequently in airplanes receive a higher exposure to radiation from cr than people who tend to stay on the ground. The reason why the exposure per hour can vary depending on the flight path is because some flight paths reach higher altitudes than others. New york to paris goes higher in the air than a flight from buenos aires to paris, so the number of rems per hour is higher.
