Recently the Dutch, Belgian, and North-Rhine Westphalian Fusion Institutes
have consolidated their fusion research on the medium-sized tokamak TEXTOR-
94 in the so-called Trilateral Euregio Cluster. To aid the new physics prog
ram of TEC, a large number of advanced core diagnostics has recently been i
mplemented. In this article we will discuss the reasoning that has led to t
he choices of the various diagnostics. Furthermore, we will briefly describ
e the new diagnostics systems. (C) 2001 American Institute of Physics.