Chapter 6: Medical Imaging: X-Rays, PET and Ultrasound

A-level PhysicsModule 6: Particles & Medical Physics8 topicsHigher

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Module 6: Particles and Medical Physics: Medical Imaging: X-Rays, PET and Ultrasound - Authored Long Answer Questions

Examiner-style long-answer practice with automatic marking, improvement advice and ProofCoach tracking.

4 questions25 marks37.5 min

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6 marksdescribestandardOCR A

For Medical Imaging: X-Rays, PET and Ultrasound, describe how attenuation, PET photons and acoustic impedance applies to ultrasound pulse reflecting from tissue.

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6 markscalculatehardOCR A

Using ultrasound pulse reflecting from tissue, calculate a relevant OCR A Medical Imaging: X-Rays, PET and Ultrasound quantity and explain the physical or chemical meaning of the answer. Show equation, substitution, answer and unit.

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7 marksexplainhardOCR A

Medical Imaging: X-Rays, PET and Ultrasound - data from: ultrasound pulse reflecting from tissue

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The graph for Medical Imaging: X-Rays, PET and Ultrasound shows data from ultrasound pulse reflecting from tissue. Explain the pattern using the data and relevant physics principles.

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6 marksevaluatestandardOCR A

In ultrasound pulse reflecting from tissue, evaluate the experimental method or model assumptions used when applying attenuation, PET photons and acoustic impedance.

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5. Radioactivity, Half-Life and Nuclear Physics

End of Module 6: Particles & Medical Physics

Key learning objectives

Understand the key principles behind Medical Imaging: X-Rays, PET and Ultrasound.
Apply these ideas to exam-style questions.
Recall the essential definitions and key terms.