Editing ATLAS experiment (section)

====Semi-Conductor Tracker====
The Semi-Conductor Tracker (SCT) is the middle component of the inner detector.  It is similar in concept and function to the Pixel Detector but with long, narrow strips rather than small pixels, making coverage of a larger area practical.  Each strip measures 80 micrometres by 12 centimetres.  The SCT is the most critical part of the inner detector for basic tracking in the plane perpendicular to the beam, since it measures particles over a much larger area than the Pixel Detector, with more sampled points and roughly equal (albeit one-dimensional) accuracy.  It is composed of four double layers of silicon strips, and has 6.3&nbsp;million readout channels and a total area of 61&nbsp;square meters.