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6 (a) Many different types of radiation are used by doctors - Edexcel - GCSE Physics - Question 6 - 2015 - Paper 1
Question 6
6 (a) Many different types of radiation are used by doctors. Which type of radiation comes from radioactive sources? Put a cross (X) in the box next to your answer. ... show full transcript
Worked Solution & Example Answer:6 (a) Many different types of radiation are used by doctors - Edexcel - GCSE Physics - Question 6 - 2015 - Paper 1
Step 1
Step 2
Explain how radiation from radioactive sources can be dangerous to people.
Answer
Radiation from radioactive sources can be dangerous to people because:
- It has enough energy to ionize atoms, which can damage or destroy cells in the body.
- Exposure to high levels of radiation can lead to acute health effects such as radiation sickness.
- Prolonged exposure to lower levels can increase the risk of cancer due to mutations in DNA.
Step 3
Describe some precautions that medical staff can take to ensure their safety from radioactive materials.
Answer
Medical staff can take several precautions, including:
- Using Lead Shields: To protect themselves from radiation exposure during procedures involving radioactive materials.
- Distance: Maximizing distance from the source of radiation, as intensity decreases with distance.
- Time Management: Minimizing time spent near radioactive sources to reduce exposure.
- Protective Gear: Wearing appropriate protective clothing, such as gloves and gowns, when handling radioactive materials.
- Regular Monitoring: Utilizing dosimeters to monitor exposure levels and ensure they remain within safe limits.