Wilson chamber

The tracks of alpha particles and of electrons ejected by X rays were first observed in Wilson chambers. Later the more advanced bubble and spark chambers were designed. Another type of detector, which is widely used for recording particle tracks, is one that fixes the changes in the structure of a medium when treated by certain chemical reagents. These are the photoemulsions and the different types of solid detectors.6... 

In cloud chambers (Wilson chambers) the tracks of ionizing particles are visible by condensation of droplets on the ions produced. The gas in the chamber is saturated with the vapour of water, alcohol or other volatile liquids. By sudden expansion supersaturation is obtained and condensation occurs along the ion tracks. Dust or other condensation centres must be eliminated, to avoid interferences. Cloud chambers can be operated in cycles by a piston or diaphragm (expansion chamber) or by diffusion of a saturated vapour into a colder region (diffusion cloud chamber). 

The open system s dynamics is crucially determined by the interaction in the composite system S -I- E. Usually, for the composite system S -I- E, one adopts validity of the Schrodinger equation. Then, the task is to properly describe the open system s dynamics. Probably the best-known examples of open systems are the object of quantum measurement, a quantum particle in Wilson chamber, and detection of a quantum particle on the screen. 

P. M. S. Blackett (Manchester) development of the Wilson cloud chamber method and discoveries therewith in the field of nuclear physics and cosmic radiation. 

Smog Chamber Renzetti and Doyle Prager Groblicki and Nebel Wilson O Brien Grosjean (unpublished data)... 

Wilson S, Bergsma DJ, Chambers JK, et al. Orphan G-protein-coupled receptors - the next generation of drug targets. Br ] Pharmacol 1998 125 1387-92. 

J.G. Wilson, The Principle of Cloud Chamber Technique. Cambridge University Press, London, 1951. 

Wilson, D. J., Konermann, L, A capillary mixer with adjustable reaction chamber volume for millisecond time-resolved studies by electrospray mass spectrometry, Anal. Chem. 2003, 75, 6408-6414. 

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