SDD Cross Section

Scheme of a typical silicon drift detector in a standard TO8 housing.
All VITUS detectors are mainly characterized by their SDD chip with sizes between 7 and 150 mm² and mounted on a ceramic chip carrier. A Peltier element is used to cool the detector sufficiently.
Each SDD is equipped with an on-chip collimator, which provides a minimum vertical distance to the radiation entrance plane and thus a large solid angle.