An automatic condensation nucleus counter |
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| Authors: | J Law |
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| Institution: | (1) Cavendish Laboratory, Cambridge;(2) Present address: Research Physics Dept., Christie Hospital & Holt Radium Institute, Manchester, 20 |
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| Abstract: | Summary Samples of air are sucked into a tube, partly lined with damp blotting paper, and become saturated with water vapour. They are then allowed to expand and the cloud which is formed scatters light from a bulb at the side of the tube to a photomultiplier at one end of it. The sampling and expansion are controlled by solenoid valves and the apparatus works continuously, giving readings at intervals of one minute. |
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