Positron-emitting radionuclide
What Positron-emitting radionuclide means in Physics A-Level, as defined for OCR.
Definition of Positron-emitting radionuclide
Check what you remember
Read the wording for your board, then hide it and explain Positron-emitting radionuclide in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A substance, often fluorine-18 in fluorodeoxyglucose, that is administered and taken up by metabolically active cells, emitting a positron that travels a short distance before annihilating with an electron.
Topics that use Positron-emitting radionuclide
- Diagnostic methods in medicine (OCR A-Level)
Related terms
- Annihilation
- Clinical diagnosis from count maps
- Coincidence detection
- Collimator
- Computer
- Fluorine–18
- Functional medical imaging
- Medical tracer
Using Positron-emitting radionuclide in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge