Understanding the Hazards and Benefits of Nuclear Radiation in Medicine

The video tutorial discusses nuclear radiation, its potential uses, and hazards. It explains the dangers of radioactive contamination and irradiation, and the precautions to avoid them. The video also covers background radiation sources and their generally harmless nature. It highlights medical applications of nuclear radiation, such as using gamma rays for organ exploration and tissue destruction. Finally, it emphasizes the importance of monitoring radiation doses to ensure safety.

What is one of the main reasons nuclear radiation can be hazardous to living tissues?

• It can cause immediate burns on the skin.

• It can make tissues glow in the dark.

• It can ionize atoms, disrupting chemical reactions.

• It can cause tissues to become radioactive.

Which of the following is a precaution to avoid radioactive contamination?

• Ignoring the presence of radioactive dust.

• Using thick gloves and protective clothing.

• Handling materials with bare hands.

• Using a lead shield to block radiation.

What is the purpose of wearing a badge in environments with nuclear radiation?

• To monitor exposure to radiation.

• To enhance communication with robots.

• To protect against chemical spills.

• To identify the worker's role.

What is a natural source of background radiation?

• Nuclear weapons tests.

• Medical X-rays.

• Radioactive rocks from inside the earth.

• Nuclear power stations.

Why are gamma-emitting isotopes used for exploring internal organs?

• They are less expensive than other isotopes.

• They are more stable than other isotopes.

• They can pass through the body and be detected externally.

• They are safer than alpha and beta particles.

What is a method to minimize damage to healthy tissue when using gamma radiation to destroy tumors?

• Using alpha particles instead of gamma radiation.

• Increasing the radiation dose to shorten treatment time.

• Aiming the radiation from multiple directions.

• Using a single, strong beam from one direction.

How is radiation dose typically measured?

• In kilograms.

• In millisieverts.

• In liters.

• In meters.