uses of radiation

1
uses of radiation

• (a) The Atomic Bomb
• Uncontrolled destruction
• Uncontrolled fission

2
uses of radiation

• (b) Nuclear reactor
• Nuclear energy

3
uses of radiation

• (c) Radioactive tracers
• In agriculture
• To detect how readily plants absorb phosphates
  and to which parts of a plant

4
uses of radiation

• (c) Radioactive tracers
• In medicine
• To detect tumours, blood clots and hyperthyroid
  glands

5
uses of radiation

• (c) Radioactive tracers
• In engineering
• To determine how fast equipment wear out
• To trace obstructions

6
uses of radiation

• (d) Radiotheraphy
• Purposeful killing of cancerous/ malignant tissue
• Cancerous cells more vulnerable to ionizing
  effect of radiation

7
uses of radiation

• (e) Thickness control
• Ensure uniform thickness
• Using a beta-source, count rate will be constant
  if thickness is uniform

ratemeter

8
uses of radiation

• (f) Sterilization
• Killing germs
• in bandages, dressings, syringes, equipment and
  fruit vegetable

9
uses of radiation

• (f) Archaeology
• Determine age of objects
• C-14 has a half-life of 5730 years
• Using activity, can predict age of object