In recent years about four new NSE spectrometers became or are becoming available all over the world. Most of them an optimized for the small angle range where high scattered intensity and high resolution go nicely together. There was, however, a non-negligible demand for beam time on relatively high q range 0.3-2.4 Angstrom(-1). In this q range neutrons are sparse and even giving up on the resolution side there is still a substantial area between TOF, back scattering and state-of-the-art NSE resolution. This motivated the development of a relatively large-area detector extension of IN11. The design and construction is 90% completed, the very first test results are presented. (C) 1998 Elsevier Science B.V. All rights reserved.
