Nuclear medicine physics
Nuclear medicine physics combines radiation measurement, imaging, dosimetry and service safety in departments that use radioactive tracers or radionuclide therapies.
What makes it different
In diagnostic imaging, the radiation source may be outside the patient. In nuclear medicine, the radioactive material is administered to the patient, so the physics includes activity measurement, detector performance, image quantification, contamination control, patient pathways and radiation protection.
Typical services can include gamma camera imaging, SPECT, PET, radionuclide therapy support and non-imaging tests. The exact mix depends on the hospital and whether the service is diagnostic, therapeutic, research-active or linked to a larger regional centre.
Questions worth understanding
- How does a gamma camera or PET scanner detect emitted radiation?
- Why do attenuation, scatter and resolution matter?
- How is administered activity measured and checked?
- What makes a radionuclide therapy pathway different from a scan?
- How do local rules protect staff, patients and the public?
Applicant preparation
For applications and interviews, focus on the blend of physics and responsibility. A good answer might link half-life, detector response, counting statistics or image reconstruction to clinical usefulness and safe practice. It is also worth understanding why audit trails, checks and local procedures matter in a radiation service.
Source: IPEM medical physics overview.