Monthly Archives: April 2014

IB HL Medical Imaging – More Advanced Newer Techniques

Image intensifier screens (fig below) allow the production of an image changing in real time, which can be advantageous, particularly when used with high contrast material like Ba which shows the passage of barium sulphate through the gut, for example. … Continue reading

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IB Medical Imaging – X rays Basics

    X-rays are produced when charged particles like electrons are accelerated around nuclei. Since they are negatively charged, they are accelerated towards a positive nucleus, emitting as they curve around a ‘braking radiation’ or‘bremsstrahlung’ in German. The degree of ‘bend’ determines … Continue reading

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