CHERNOBYLCHERNOBYL A CITY THAT WAS By: Mikey, Andrew, Greta, Naweed, and Daniel A CITY THAT WAS By: Mikey, Andrew, Greta, Naweed, and Daniel

What Happened? g Inadequate personnel Reactor malfunction Release of radioactive material

Aftermath of the disaster… Radioactive fallout in Europe Caused cancer in survivors Recent radioactive release NSC built over shelter

Are we okay?! 4,500 miles away Radiation contained within Europe

Chernobyl Reporting… Reported by Swedish monitoring stations

Russian Response… Evacuated people from homes Contained nuclear waste Unsuccessful

Pilgrim Nuclear Power Plant Very safe Well trained staff Containment structure

Terminology 1)Nuclear power uses nuclear fission to heat water into pressurized steam, which turns a turbine generator creating electricity. 2) Nuclear fission is a nuclear reaction that occurs when a nucleus splits into smaller nuclei, and releases gamma radiation. 3) Radiation sickness occurs when someone is exposed to radiation; it causes damage to blood cells, and symptoms include nausea, vomiting, fever, weakness, fatigue, hair loss, and is often fatal. 4) Scram is "an emergency shutdown of a nuclear reactor", its an acronym for "safety control rod axe men". 5) A steam turbine creates power when steam, (vaporized water) hits blades on a wheel, causing it to rotate rapidly, creating power. 6) Core meltdown is when the reactor core cooling fails, and the emergency core cooling fails, the core heats up until it’s a "molten mass". 7) "Plutonium is a radioactive chemical element". It is primarily created in nuclear reactor, and is shiny and tarnishes easily. 8)A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate. 9)Decontamination is the process of removing contamination, particularly the cleaning off of dangerous materials. 10)Radioactive exposure, also called radiological contamination, is the uncontrolled distribution of radioactive material in a given environment. 11)Cesium 137 is a radioactive isotope of cesium, which is formed mainly as a fission product by nuclear fission. It has a half-life of years, and decays by beta decay. 12)Strontium 90 is a radioactive isotope of strontium, with a half-life of 28.8 years. 13)A containment vessel consists of a barrier that successively includes fuel cladding, primary vessels, and thick shielding. As a final barrier, the reactor is housed in a containment structure. 14)There are several types of graphite moderated nuclear reactors that have been used in commercial electricity generation.

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Nuclear Equations U  4 2 He  Th Xe  0 -1 e  Cs