No caption 1973 PHOTOARCIMAGES

No caption 1973 PHOTOARCIMAGES

No caption 1973 PHOTOARCIMAGES

Tests of the aluminium-sealing equipment 1970 Alumnium flanges allow a metal-on-metal seal by deforming when tightened. Nowadays (2015) such seals are used with Klein Flanges. PHOTOARC

Machine for weaving wires for use in multiwire proportional wire chambers 1970 Machine for weaving wires for use in multiwire proportional wire chambers: An older version of the machine pictured was used to to wind the (thick) wires used for spark chambers. In 1968, Georges Charpak invented the Multiwire Proportional Chamber, and the machines were modified to handle the thinner (20 µm) wires used in these machines. Charpak won the 1992 Nobel Prize in Physics "for his invention and development of particle detectors, in particular the multiwire proportional chamber". PHOTOARC

BEBC power entry 1970 The power entry for the Big European Bubble Chamber (BEBC) was inserted in a tube. The engraved chicanes (grooves) thus allowed circulation of the cooling fluid, in this case helium. PHOTOARC

No caption 1970 Damaged commutator from a DC motor PHOTOARCIMAGES

No caption 1973 PHOTOARCIMAGES

No caption 1969 Multi-wire proportional chamber (MWPC) PHOTOARCIMAGES

1969 Model of an ISR split field magnet, made up of two compensating magnets and installed at point 4 of the Intersecting Storage Rings. The project leader was Romeo Perin. PHOTOARCIMAGES