X-ray Imaging (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is thermionic emission in X-ray production?
What is thermionic emission in X-ray production?
Heated metal releases free electrons
What type of spectrum does bremsstrahlung produce?
What type of spectrum does bremsstrahlung produce?
Continuous spectrum
How are characteristic X-ray photons produced?
How are characteristic X-ray photons produced?
Outer electrons drop to fill vacancies
What determines the maximum X-ray photon energy?
What determines the maximum X-ray photon energy?
(charge × accelerating voltage)
What percentage of electron kinetic energy converts to X-rays?
What percentage of electron kinetic energy converts to X-rays?
About 1%
Why is tungsten commonly used as the X-ray target?
Why is tungsten commonly used as the X-ray target?
High melting point & thermal conductivity
At what speed is the anode typically rotated?
At what speed is the anode typically rotated?
About 3000 revolutions per minute
How does increasing filament current affect X-ray intensity?
How does increasing filament current affect X-ray intensity?
Increases intensity, not photon energy
What enhances image sharpness in X-ray imaging?
What enhances image sharpness in X-ray imaging?
Detection plate close to patient
What is the purpose of an aluminium filter in X-ray systems?
What is the purpose of an aluminium filter in X-ray systems?
Filter out low-energy X-ray photons