Dr Steve Barrett of the University of Liverpool has designed and built a cloud chamber that has a number of advantages over other designs available. He built it to use as a demonstration as part of a talk on ‘Cosmic Rays’ and also to use at space-based outreach events.
Dr Barrett’s design differs from other DIY cloud chambers in that it is simple, compact and cheap. It is constructed from components that can be readily purchased for less than £50 and, unlike many other designs , does not require any dry ice as it uses thermoelectric cooling. This makes it easy for a teacher, or student, to construct and use.
Some of the background, and details of the design, components, construction, operation and images of the particle tracks that can be seen (muons, electrons, protons and alphas) are given in this flyer.
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