Physics A-Level
Non-ionising safety
What Non-ionising safety means in Physics A-Level, as defined for AQA.
Definition of Non-ionising safety
Check what you remember
Read the wording for your board, then hide it and explain Non-ionising safety in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Ultrasound avoids the radiation risk associated with X-rays and CT scans, making it safer for fetuses and repeated examinations.
Topics that use Non-ionising safety
- Ultrasound imaging (A-level only) (AQA A-Level)
Related terms
- A-scan
- Acoustic impedance
- Acoustic impedance and reflection
- Attenuation and penetration
- B-scan
- Comparison with X-ray, CT and MRI
- Coupling gel
- Intensity reflection coefficient
Using Non-ionising safety in the exam
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