Describe the roles of the filament (cathode), the metal target (anode), and the high voltage supply in the production of X-ray photons within an evacuated tube.
As X-rays pass through human tissue, they are attenuated. The photoelectric effect is one mechanism of attenuation.
Name and describe two other attenuation mechanisms by which X-ray photons interact with matter.
25 exam-style questions on OCR A A Level Physics Medical imaging, covering Using X-rays, Diagnostic methods in medicine, and Using ultrasound. Each one has a worked solution and a mark scheme showing where the marks go.