3.5.3

X-Rays

Test yourself

X-rays

X-rays carry the second most energy of all the waves in the electromagnetic spectrum.

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Uses

  • Low-energy X-rays are used for medical and industrial imaging.
  • High-energy X-rays are used to treat cancer.
  • X-rays are also used for security purposes to detect weapons in airports (and other places).
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Risks

  • X-rays are highly ionising (can damage body cells), even in low doses.
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Safety precautions

  • Due to the dangerous nature of X-rays, exposure to X-rays should always be kept to a minimum.
  • People working with X-ray equipment should always shield themselves to prevent exposure to X-rays.
  • These people will place materials (metals or lead) between themselves and the X-rays.

Jump to other topics

1Motion, Forces & Energy

1.1Physical Quantities & Measurement Techniques

1.2Motion

1.3Mass & Weight

1.4Density

1.5Forces: Effects of Forces

1.6Forces: Turning Effects of Forces

1.7Forces: Centre of Gravity

1.8Momentum

1.9Energy, Work, & Power: Energy

1.10Energy, Work & Power: Work

1.11Energy, Work & Power: Energy Resources

1.12Energy, Work & Power: Power

1.13Pressure

2Thermal Physics

3Waves

4Electricity & Magnetism

4.1Simple Phenomena of Magnetism

4.2Electrical Quantities: Electric Charge

4.3Electrical Quantities: Electric Current

4.4Electromotive Force & Potential Difference

4.5Electrical Quantities: Resistance

4.6Electrical Energy & Electrical Power

4.7Electric Circuits: Circuit Diagrams & Components

4.8Electric Circuits: Series & Parallel Circuits

4.9Electric Circuits: Action & Use

4.10Electrical Safety

4.11Electromagnetic Effects: Electromagnetic Induction

4.12Electromagnetic Effects: The A.C. Generator

4.13Magnetic Effect of a Current

4.14Force on a Current-Carrying Conductor

4.15Electromagnetic Effects: The D.C. Motor

4.16Electromagnetic Effects: The Transformer

5Nuclear Physics

6Space Physics

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