What you’ll learn4 learning objectivesChoose one objective for a focused lesson, or study the complete topic.24.2.1That X-rays are produced by electron bombardment of a metal target and• explain that X-rays are produced by electron bombardment of a metal target and calculate the minimum wavelength of X-rays produced from the accelerating p.d.Syllabus objective24.2.2The use of X-rays in imaging internal body structures• understand the use of X-rays in imaging internal body structures, including an understanding of the term contrast in X-ray imagingSyllabus objective24.2.3I = I0e–µx for the attenuation of X-rays in matter• recall and use I = I0e–µx for the attenuation of X-rays in matterSyllabus objective24.2.4Computed tomography (CT) scanning produces a 3D image of an internal• understand that computed tomography (CT) scanning produces a 3D image of an internal structure by first combining multiple X-ray images taken in the same section from different angles to obtain a 2D image of the section, then repeating this process along an axis and combining 2D images of multiple sectionsSyllabus objective