R802 at intersection I8, ISR

The photo shows on the middle some of the MWPCs of the spectrometer. The experiment R802 was set up by the CERN-Rome Collaboration to study negative particles at angles close to 0 deg. It required special vacuum chambers with enlarged horizontal dimensions and very thin metal windows for insertion in two magnet units adjacent to I-8 (Annual Report 1973 p. 120 and 1974, p. 108). Martin Wensveen stands on the centre, left.