Radioactive Isotopes and Nuclear Reactors

1. List 10 contrasting uses for radioactive isotopes. Medical uses:1)Used for manipulation of hematopoietic forms of tumours2)Used for the sterilisation of syringes and other medical equipmentUses in provender preservation:3)Used to halt the sprouting of root crops after harvest4)Used to tearing death parasites and pests5)Used to control the ripening of fruits and ve dismayablesUses in mining and intentness:6)Used to read welds and detect leaks7)Used to study the rate of wear and erosion of metals8)Used for analysis of minerals and fuelsEnvironmental uses:9)Used to trace and analyze pollutants10)Used to study the movement of come to the fore urine and to measure precipitation runoffs2. Briefly describe common chord different nuclear nuclear reactor/designs. 1)Light Water Reactor (LWR) ? In this reactor design, heat pee system (ordinary water) is used to both tranquil the reactor and act as a neutron moderator (a medium which reduces the focal ratio of immobile neutrons). This is the more or less widespread design in the world, and most nuclear power plants atomic number 18 of this type. The 2 most common types of LWRs are pressurized water reactors and boiling water reactors. 2) arduous Water Reactor (HWR) ? In this design, rotund water is used as a moderator and coolant. Heavy water is serene 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 hit man (usually carbon ! dioxide or helium) as the coolant. This is a actually erstwhile(a) design and such reactors are no weeklong constructed. The starting time GCR was the Calder Hall power plant built in Britain in 1955. BibliographyGas Cooled & Advanced Gas Cooled Reactors. 24 Dec. 2005. atomic Tourist. 15 Sept. 2007 . Heavy Water. 31 Jan. 2006. queen University. If you want to get a full essay, order it on our website: BestEssayCheap.com

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