This is the version of the Silicon Detector modelled as of May 31, 2005.
The compact description of this detector in xml format can be found at http://www.lcsim.org/detectors/sidmay05.zip . What follows is a plain text description of the file compact.xml found in the above this zip file (also attached below for convenience.)
The tracking region is defined to be a cylinder with radius 125.5cm and z extent +/- 167.9cm.
...