The group I work for, HiRA, stands for high resolution array. Our thick silicon detectors are about 7cm x 7cm and are divided into 32 vertical strips and 32 horizontal strips. This gives us very precise position measurement, but it's only useful if we know where are detectors are in relation to the beam axis and target. We use one laser system from the lab to give us this information, and then our laser to tell us where all of the HiRA telescopes are wrt each other.
In my thesis experiment we used 17 telescopes. From our laser measurements, I can find rho, theta, and phi of the edges of our detectors. Another member of our group has written software to generate the position of each 32x32 pixel. Below I have preliminary pics of the pixels of the telescopes. The program is pretty cool and I can rotate the 3D image to make sure it looks right from all angles.
The dots around the squares are the physical corners of the telescope can, the squares are 32x32 pixels of the detector face. The white lines are just a result of resolution, they aren't really there if you zoom in.