Rad Bio section5

Front

What radiation dose response curve is associated with leukemia?

Back

Linear non-threshold

Front

How are diagnostic x-rays characterized?

Back

Low energy, low LET

Front

What are stochastic/probabilistic effects of radiation?

Back

Effects that are typically late effects and may be described as all or nothing effects.

Front

What is the typical latent period for radiation-induced leukemia?

Back

4-7 years

Front

What are examples of late effects of ionizing radiation on humans?

Back

Leukemia, malignant disease, local tissue damage.

Front

Define 'stochastic effects' in radiation biology.

Back

Effects that occur by chance and do not have a threshold.

Front

What is 'LET' in the context of radiation?

Back

Linear Energy Transfer, a measure of the energy transferred by radiation to the material it passes through.

Front

What is the difference between 'low LET' and 'high LET' radiation?

Back

Low LET radiation transfers energy less densely and is less damaging, while high LET radiation transfers energy more densely and is more damaging.

Front

What is a 'threshold' effect in radiation exposure?

Back

An effect that only occurs after a certain dose of radiation has been exceeded.

Front

What is the significance of the 'linear non-threshold' model?

Back

It suggests that any amount of radiation exposure carries a risk of cancer, with no safe dose.