Among the most important detecting devices in the 1930s, cosmic-ray experimental physics figures the so-called ‘counter controlled cloud chamber’. This apparatus was jointly developed in 1932 by P M S Blackett, the cloud chamber expert at the Cavendish Laboratory in Cambridge and by G. Occhialini, who mastered the counting coincidence technique following his work under the guidance of B. Rossi in Florence. In this paper we address the original technical description of the apparatus and place its development within the historical and scientific framework of 1930s physics.
P.M.S. Blackett, G. Occhialini and the invention of the counter-controlled cloud chamber (1931-32)
LEONE, MATTEO;ROBOTTI, NADIA
2008-01-01
Abstract
Among the most important detecting devices in the 1930s, cosmic-ray experimental physics figures the so-called ‘counter controlled cloud chamber’. This apparatus was jointly developed in 1932 by P M S Blackett, the cloud chamber expert at the Cavendish Laboratory in Cambridge and by G. Occhialini, who mastered the counting coincidence technique following his work under the guidance of B. Rossi in Florence. In this paper we address the original technical description of the apparatus and place its development within the historical and scientific framework of 1930s physics.
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