A Cloud Chamber Control System
We describe an analog control system for the temperature control of an expansion cloud chamber. During the expansion, the sample gas and the chamber walls are cooled at the same rate so as to maintain adiabaticity. The control system measures the wall temperature with transistor temperature sensors, calculates the gas temperature from the gas pressure using the adiabatic gas law, and generates a control signal proportional to their difference. The control precision is sufficient to allow the chamber to be used in the study of atmospheric phenomena.
D. E. Hagen et al., "A Cloud Chamber Control System," Review of Scientific Instruments, vol. 45, no. 2, pp. 195-197, American Institute of Physics (AIP), Jan 1974.
The definitive version is available at http://dx.doi.org/10.1063/1.1686586
Keywords and Phrases
Control Systems; Cloud Chambers
International Standard Serial Number (ISSN)
Article - Journal
© 1974 American Institute of Physics (AIP), All rights reserved.