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P2 Radiation & Life

This lesson explores ionising radiation, focusing on X-rays and gamma rays, their risks, and practical applications. Students will learn how to assess the safety precautions necessary when using X-ray and gamma-ray technologies. Additionally, the lesson will cover public perception regarding these risks and how familiarity influences acceptance of radiation-related procedures. By the end, students should understand the types of ionising radiation, the importance of proper use, and the factors affecting risk acceptance.

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P2 Radiation & Life

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  1. P2 Radiation & Life Lesson 4: Effects of Ionising Radiation

  2. Objectives • MUSTunderstand the risks and uses of X-rays and gamma rays • SHOULD understand precautions to take with X-rays and gamma rays • COULD understand how people perceive and accept risks

  3. Complete the sentence • The three types of ionising radiation are...

  4. Complete the sentence • The three types of ionising radiation are... • Ultraviolet • X-rays • Gamma rays

  5. Key Words • You need to be able to define the following: • Gamma rays • Radioactive • X-rays • Radiographer

  6. Textbook Answers 1) The gamma rays can penetrate to these cells and ionise molecules. 2) X-rays are less energetic than gamma rays. 3) They absorb X-rays and gamma rays. 4) X-rays and gamma rays can penetrate the body and form images of organs and tissues. 5) More willing to accept risks (of side effects) for a short time and if there is a known problem. 6) People are more familiar with travelling by car; they also feel more in control.

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