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What do all these have in common?

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Presentation on theme: "What do all these have in common?"— Presentation transcript:

1 What do all these have in common?

2 Learning Objectives By the end of this lesson you should be able to… Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission.

3 Why should each of these be considered?
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Radioactivity Radioactive isotopes can be used in all manner of ways from the mundane (paper rollers) to the most cutting edge medicine (radiotherapy). When choosing the isotope to work with we must consider; Half life Penetration How ionising Why should each of these be considered?

4 Using Radioactivity (video) Radioisotopes at Work 1 and 2 (video)
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Using Radioactivity (video) Radioisotopes at Work 1 and 2 (video)

5 Which type of radiation is used and why?
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. What the use How does it work Which type of radiation is used and why? What half life should the source have and why?

6 More uses of tracers… Gamma source What the use How does it work
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Gamma source What the use How does it work Which type of radiation is used and why? What half life should the source have and why?

7 Which type of radiation is used and why?
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. What the use How does it work Which type of radiation is used and why? What half life should the source have and why?

8 Which type of radiation is used and why?
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. What the use How does it work Which type of radiation is used and why? What half life should the source have and why?

9 Radiotherapy... Machine rotates around the tumour at the centre
Gamma rays focus on the tumour and blast it from all angles Healthy cells are less damaged by the changing rotation, dose is limited.

10 What are the dangers? Healthy cells can (and will) be damaged
ALARA principle...

11 Radiotherapy Advantages Disadvantages Damage to neighbouring
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Radiotherapy Advantages Disadvantages Damage to neighbouring Normal cells e.g. burns No surgery Kills cancer Radiation sickness e.g hair loss Accurate Risk of over exposure - staff and patients

12 Which type of radiation is used and why?
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Detector Rollers Paper Emitter What the use How does it work Which type of radiation is used and why? What half life should the source have and why?

13 Which type of radiation is used and why?
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. What the use How does it work Which type of radiation is used and why? What half life should the source have and why? Different to one on sheet.

14 Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission.

15 Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission.

16 Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission.

17 Unscramble the parts of a power station
This is a real word, honestly! Darlingtonia Intuber Or reagent Lefu Logicon wrote Extension: Can you put them in the correct order? Libero

18 Unscramble the parts of a power station
National Grid Turbine Generator Fuel Cooling Tower Extension: Can you put them in the correct order? Boiler

19 Generating Electricity
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Generating Electricity

20 Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Nuclear Power Nuclear power stations use the energy released from radioactive atoms to create electricity. Can release huge amounts of energy from a very small amount of fuel! Just like in all other power stations the energy given off is used to heat water to turn a turbine…

21 Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Nuclear Power Start with a fuel rod – made of uranium235 or polunium239. Allow a neutron to smash into one of the uranium atoms. This makes it unstable and it splits apart into two smaller atoms. As it does this it releases 2 more neutrons. Each of these can go on to cause a new fission event.

22 Nuclear Power What particle starts the nuclear chain reaction?
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Nuclear Power What particle starts the nuclear chain reaction? What are the full names of the 2 atoms that uranium splits into? Describe what the term “chain reaction” means. EXT: After 10 generations how many neutrons would be given off?

23 Nuclear Power Teacher notes
This three-stage animated sequence explains nuclear fission.

24 Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Nuclear Power Some people believe the risks involved are too great… accidents can and do happen!

25 Nuclear Power Days that Shook the World (Video Clip)
Learning Objectives By the end of this lesson you should... Describe the uses of different radioactive materials in the home and industry. Describe the characteristics of a sample which must be considered when choosing a radioactive sample for use. Explain how a nuclear power plant can harness the energy of nuclear fission. Nuclear Power Days that Shook the World (Video Clip)

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