Skip to content
    Physics A-Level

    Gamma photon energy and detector efficiency

    What Gamma photon energy and detector efficiency means in Physics A-Level, as defined for AQA.

    Definition of Gamma photon energy and detector efficiency

    Check what you remember

    Read the wording for your board, then hide it and explain Gamma photon energy and detector efficiency in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    The energy must be sufficient to penetrate the body yet suitable for efficient detection, so an intermediate energy such as about 100 keV is chosen.
    AQA · Imaging techniques (A-level only) (study guide)

    Topics that use Gamma photon energy and detector efficiency

    Related terms

    Using Gamma photon energy and detector efficiency 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.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Physics A-Level terms