Title: Ion chamber
Date: 1936 (approximate)
Original Format: photograph: negative
Description: Instruments like this used in India (1936 and 1940), Canada (1937), and the US (1936-38, 1940, 1946). This one, No. 14, used to correlate measurements made in the 1930s with those made in 1950s and 1960s with the pulsar-type chamber. Mfg. CIT Physics Shop.
Collection: Scientific Instruments
Caltech Archives ID: ST-CR-05
