Kylonicus Posted April 21, 2005 Share Posted April 21, 2005 I would like to know how particle detectors work, if anyone could tell me, because I think there is a way to manipulate the uncertanity principle to produce energy, and I need a way to observe the particles so it changes their actions. Link to comment Share on other sites More sharing options...
swansont Posted April 22, 2005 Share Posted April 22, 2005 That's a rather open-ended question. There are lots of kinds of particle detectors. Cloud and spark chambers, scintillation counters and multi-channel plates, just to name a few. It depends on what you are trying to detect and what informaton you are tying to obtain. Link to comment Share on other sites More sharing options...
Kylonicus Posted April 23, 2005 Author Share Posted April 23, 2005 I am trying to observe electrons. Link to comment Share on other sites More sharing options...
swansont Posted April 23, 2005 Share Posted April 23, 2005 I am trying to observe electrons. And what information are you trying to get? You have electron multipliers, which will amplify the signal from a single electron in a cascade the electron hits a dynode, which ejects several elelctrons, and these are accelerated to a second stage, which emits more electrons, etc. The signal size can give some information about the electron energy. A microchannel plate works in a similar fashion, but the micro-channels also localize the position of the electron. But I don't think you get as good information about the energy. Faraday cups measure current, but not individual electrons. You can have a fluorescent material on a screen with a photomultiplier (or several, for position information) Cloud chambers use a supersaturated vapor that condenses when a charged particle passes through and leaves a track (also bubble chambers). You put a magnetic field on it and the track curvature tells you information about the energy, if you already know the charge and mass. Geiger tubes amplify ionizations of a gas with a bias voltage that cause secondary ionizations. Link to comment Share on other sites More sharing options...
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