Radiation.ppt
- 2. X-rays • The radiation used in X-rays is a type of electromagnetic radiation • X-rays can go through flesh, but not bones, meaning that they can be used to show images of bone structures for medical uses.
- 3. Uses of Radioactive Isotope • Sodium 24- Can highlight leakages in water pipes. • Manganese 54- Can be used to detect behaviour of heavy metals. • Thallium 201- Used to locate damaged heart muscles. • Americium 241- Used in domestic smoke detectors.
- 4. Use of Radioactive Isotope detection (PET) • PET scans offer a way to detect and evaluate cancer cells. • It is usually administered by injection.
- 5. Cure (cancer) • Radiotherapy is used to treat about 50-60% of people with cancer. • Radiotherapy is the use of high-energy radiation to kill dangerous cells, for example cancer cells. • Radiation therapy works because it eliminates the cells ability to reproduce, killing the disease.
- 6. What are Isotopes? • Isotopes are the additional neutron in an atom. • For example, in Lithium. Lithium has an atomic number of 3, however it has a mass number of 7, telling us that there is four neutrons, one additional than protons. This additional neutron can cause the atom to be reactive and unstable.
- 7. What are Isotopes? • Isotopes are the additional neutron in an atom. • For example, in Lithium. Lithium has an atomic number of 3, however it has a mass number of 7, telling us that there is four neutrons, one additional than protons. This additional neutron can cause the atom to be reactive and unstable.