The lighter side of neutrino experiments

2 May 1963

A buzz of excitement marked the start of neutrino experiments at CERN in 1963. As many years of hard work were about to be put to the test, this spoof advertisement appeared on the concrete shielding near the heavy liquid bubble chamber.

CERN inventions such as the fast ejection system, proposed in 1959 by Berend Kuiper and G√ľnther Plass, and the magnetic horn, which earned Simon van der Meer his share of the Nobel prize for physics in 1984, had enabled CERN to produce the most intense beam of neutrinos in the world. The first run in June was anxiously awaited, but everything ran smoothly. During seven weeks a total of 4000 events were observed in the spark chamber and 360 in the bubble chamber, comparing very favourably with the 56 spark chamber events found in the previous neutrino experiment in Brookhaven.

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