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In the framework of the LHC superconducting dipole magnet model programme, a 56 mm bore, twinaperture dipole model 1 m long, using existing cables of the standard SSC type, was launched to initiate studies of lower field magnets with smaller strand size cables for a 7 TeV collider. This model was designed, built, assembled and tested at CERN and reached a peak field of 9.7 T at 1.8 K. The paper reviews the main design principles, presents the fabrication and assembly procedures and finally discusses the overall test results.

The Forward Ring Imaging Cherenkov detector covers both end-cap regions of the DELPHI experiment at LEP in the polar angle 15" < B < 35" and 145' < 0 < 165". The detector combines a layer of liquid C6F14 and a volume of gaseous C4F10 into a single assembly. Ultraviolet photons from both radiat,ors are converted in a single plane of photosensitive Time Projection Chambers. Identification of charged particles is provided for momenta up to 40 GeV/c. The design of the detector is briefly described. The detector is now fully installed in DELPHI and has participated in the 1993 data taking. The overall performance will be presented together with the expectations from Monte Carlo simulations. Results close to design values are obtained.