Heavy-liquid bubble chamber Gargamelle under repair

The heavy-liquid bubble chamber Gargamelle has undergone a series of repairs after factures had appeared in its expansion system. The top half of the photographs show the magnet with its 44 expansion and recompression tubes (large white circles) and its 44 motors controlling the safety valves (small black and white circles). The chamber itself is inside the magnet. The tanks of the expansion system had been reinstalled on the trolley in the foreground. A large number of struts had been fitted to the trolley to give it added rigidity.