Ion chamber, early
1922
- Title
- Ion chamber, early
- Collection
- Caltech Images Collection
- Series
- Scientific Instrument Photographs
- Identifier
- ST-CR-10
- Dates
- 1922
- Extents
- 1 photographs (negative)
- Abstract
- Smallest cylindrical electroscope with clock and photographic drum. Used by Millikan and Bowen in 1922. See Phys. Rev. 27:353 (1926). Mfg. CIT Physics Shop.