Abstract
FOR various investigations, such as for large range radiation or when ionisation occurs infrequently, it is an advantage to use high pressure in a Wilson cloud chamber1. We have developed a Wilson chamber of 2 cm. diameter in which pressure can be increased to 100 atmospheres. The desired compression and sudden expansion was obtained by a piston which followed the pressure of gas in a cylinder below the cloud chamber. By this means, a sudden expansion in the cloud chamber was more easily obtained than by the usual mechanical means of moving a piston.
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References
Mott-Smith L. M., Rev. Sci. Instr., 5, 346; 1934; and Brubaker W. M., and Bonner T. W., Phys. Rev., 47, 225; 1935. Description of a high-pressure Wilson chamber in which pressure can be increased to 20 atmospheres.
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KIPFER, P. A High-Pressure Wilson Cloud Chamber. Nature 135, 431–432 (1935). https://doi.org/10.1038/135431b0
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DOI: https://doi.org/10.1038/135431b0
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