Exhaust Valve for Pneumatic Cloud Chambers
- 1 November 1939
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 10 (11), 321-322
- https://doi.org/10.1063/1.1751455
Abstract
An air valve designed for the purpose of triggering the expansion of a pneumatic cloud chamber utilizes Bridgman's ``unsupported area'' seal. The valve is controlled by a magnet constructed from the field coil of an inexpensive dynamic loudspeaker. This design allows vacuum tube control of forces up to 75 pounds. High speed of operation (∼1/300 second) recommends its use with counter control, and its extreme simplicity is advantageous in general work.This publication has 1 reference indexed in Scilit:
- Some photographs of the tracks of penetrating radiationProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1933