Cloud chamber used by Rochester and Butler for the first photographs of "strange (nu) particles", 1945-1947 1945-1947
Wilson cloud chamber by Griffin and George Ltd. Wilson cloud chamber by Griffin and George Ltd. 1964-1983
High pressure hydrogen magnet Wilson Cloud Chamber, approximately 480mm high and 520mm diameter, weight approximately 300Kg. Used by Basil Rose to show that Spectrum of Neutrons from the Zero Energy Thermonuclear Assembly (Zeta) was not consistent with neutrons from a thermonuclear reaction, c. 1957-1958. (Note: ZETA is sometimes incorrectly expanded as Zero Energy Thermal Apparatus). High pressure hydrogen magnet Wilson Cloud Chamber 1955-1960
Complete diffusion cloud chamber, for making visible the tracks of cosmic ray particles, unsigned, supplied by De La Rue Frigistor Limited, Langley/Bucks, 1968 Complete diffusion cloud chamber circa 1967