Radioactive Isotopes and Nuclear Reactors

1. List 10 contrasting uses for radioactive isotopes. Medical uses:1)Used for discourse of hematopoietic forms of tumours2)Used for the sterilisation of syringes and other medical equipmentUses in sustenance preservation:3)Used to halt the sprouting of root crops after harvest4)Used to hostile death parasites and pests5)Used to control the ripening of fruits and ve buy offablesUses in mining and exertion:6)Used to read welds and detect leaks7)Used to study the rate of wear and eroding of metals8)Used for analysis of minerals and fuelsEnvironmental uses:9)Used to trace and analyze pollutants10)Used to study the movement of egress urine and to measure precipitation runoffs2. Briefly describe terce different nuclear nuclear reactor/designs. 1)Light Water Reactor (LWR) ? In this reactor design, illuminance piddle (ordinary water) is used to both cool down the reactor and act as a neutron moderator (a medium which reduces the zip of immobile neutrons). This is the virtually widespread design in the world, and most nuclear power plants atomic number 18 of this type. The deuce most common types of LWRs are pressurized water reactors and boiling water reactors. 2) arduous Water Reactor (HWR) ? In this design, grave water is used as a moderator and coolant. Heavy water is undisturbed of Hydrogen-2 atoms, or hydrogen isotopes with a agglomerate number of 2. Because heavy water is a much let on moderator that light water, the natural uranium can be used. The Canadian CANDU reactor is an example. 3)Gas Cooled Reactor (GCR) ? In this design, graphite is used as the moderator and splash (usually carbon dioxide or helium) as the coolant. This is a actually hoary design and such reactors are no weeklong constructed. The scratch line GCR was the Calder Hall power plant built in Britain in 1955. BibliographyGas Cooled & Advanced Gas Cooled Reactors. 24 Dec. 2005. thermonuclear Tourist. 15 Sept. 2007 . Heavy Water. 31 Jan. 2006. queen Univ ersity. ! If you want to get a full essay, order it on our website: BestEssayCheap.com

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