Physics A-Level
Control of beam intensity and photon energy
What Control of beam intensity and photon energy means in Physics A-Level, as defined for AQA.
Definition of Control of beam intensity and photon energy
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Reference: AQA
Tube current controls beam intensity, while tube voltage controls photon energy, since increasing V increases hf_max = eV.
Topics that use Control of beam intensity and photon energy
- The physics of diagnostic X-rays(A-level only) (AQA A-Level)
Related terms
- Bremsstrahlung
- Characteristic X-rays
- Continuous spectrum
- Image quality: sharpness and contrast
- Radiation protection and patient dose
- Thermal management in X-ray tubes
- Maximum photon energy
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