A+CANDU+Reactor

=__Isotope and Radioactivity__= = = =CANDU Reactor= = = = = =Explanation of interesting facts: (how used/works.experiments/discoveries)= =3 Advantages of using the radioactive isotope/radiation/benefits of discovery= =Is the radioactive isotope/radiation/discovery still used today? Explain= Today there are 29 CANDU reactors in use around the world, and a further 13 in use in India. Since CANDU is cost efficient because it does not need urnanium to be intensely refined in order to reach critically. Without nuclear technology for forty years, 2 billion tonnes of carbon dioxide, 11 million tonnes of sulphur dioxide, and 2.5 million tonnes of nitrogen oxides would be let into the Earth’s atmosphere. Nuclear energy is much cleaner than fossil fuels because there's is no ash, gas, or airborne particles created.
 * 1) Canadian made, hence CANDU (CANada Deuterium Uranium)
 * 2) Produce nuclear power form nuclear fuel in nuclear power plants
 * 3) Works through pressurized water into a steam generator, where heat is transferred to light water and converts into steam, then steam is used to turn the steam turbines which turn the generator, creating electricity.
 * 4) All nuclear plants use CANDU reactors with the process of being refurbished.
 * 5) Built in the late 1950's by Atomic Energy Canada Ltd.
 * 6) It's a Canadian-designed power reactor of PHWR type (Pressurized Heavy Water Reactor) that uses heavy water (deuterium oxide) for moderator and coolant, and natural uranium for fuel.
 * 1) CANDU is the most efficient of all reactors in using uranium, it uses about 15% less uranium than a pressurized water reactor for each megawatt of electricity produced.
 * 2) Use of natural uranium widens the source of supply and makes fuel fabrication easier. Most countries can manufacture the relatively inexpensive fuel.
 * 3) CANDU reactors can be fueled with a number of other low-fissile content fuels, including spent fuel from light water reactors. This reduces dependency on uranium in the event of future supply shortages and price increases.
 * 4) Heavy water used in CANDU reactors is readily available. It can be produced locally, using proven technology. Heavy water lasts beyond the life of the plant and can be re-used.
 * Canada: 17 (+3 refurbishing, +5 decommissioned)
 * South Korea: 4
 * China: 2
 * India: 2 (+13 CANDU-derivatives in use, +3 CANDU-derivatives under construction)
 * Argentina: 1
 * Romania: 2 (+3 under construction, currently dormant)
 * Pakistan: 1

=References=
 * http://www.cna.ca/curriculum/cna_nuc_tech/candu-eng.asp?bc=The%20Candu%20Reactor&pid=The%20Candu%20Reactor
 * http://en.wikipedia.org/wiki/CANDU_reactor
 * http://www.candu.org/candu_reactors.html
 * http://www.odec.ca/projects/2007/cape7h2/Pros_Cons.html
 * http://www.world-nuclear.org/images/info/candu.gif