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Compare the work, not the label

Should you choose radiotherapy or imaging physics?

Radiotherapy physics centres on accurate treatment delivery. Imaging physics centres on producing reliable diagnostic information while managing performance and risk. Both need measurement, computing, quality systems and teamwork.

RadiotherapyDose planning, treatment delivery, dosimetry, machine quality and treatment safety.
Ionising imagingX-ray and CT performance, patient dose, optimisation and radiation protection.
Non-ionising imagingMRI, ultrasound and optical performance, safety and clinical implementation.

What is the main clinical purpose?

Radiotherapy uses radiation to treat disease, especially cancer. Diagnostic imaging creates information used to detect, characterise or monitor disease. Nuclear Medicine can cross imaging and therapy, so it deserves separate consideration.

Which technical work differs?

  • Radiotherapy: treatment planning, dose calculation and treatment-machine assurance
  • Ionising imaging: image quality, patient dose and x-ray equipment optimisation
  • Non-ionising imaging: MRI, ultrasound and optical measurement and safety
  • All areas: commissioning, investigation, data analysis, documentation and change control

Which current STP preferences map to imaging?

The current NSHCS taxonomy uses Imaging with Non-Ionising Radiation and Radiation Safety and Diagnostic Radiology. 'Imaging physics' is not one single current preference. Nuclear Medicine is listed separately.

What might help you decide?

  • Which patient pathway do you want to support?
  • Which physical principles do you want to use every day?
  • Do treatment planning or diagnostic optimisation problems hold your attention longer?
  • How do you feel about the service pressures and risk controls in each area?
  • What did you learn from official descriptions, events or conversations?

Keep comparing

Which daily problems would you want to own?

Read one detailed specialty guide, then test your choice against the full current list.

Sources and review date