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Detecting Cosmic Rays An inexpensive portable detector By: Danny Franke Quarknet 2004.

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Presentation on theme: "Detecting Cosmic Rays An inexpensive portable detector By: Danny Franke Quarknet 2004."— Presentation transcript:

1 Detecting Cosmic Rays An inexpensive portable detector By: Danny Franke Quarknet 2004

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3 LBNL Detector http://www.lbl.gov/abc/cosmic /

4 Scintillators Scintillators are materials which emit light when they interact with charged particles. Usually a type of plastic that is doped with small amounts of aromatic hydrocarbons. (Polyvinyltoluene)

5 Photomultiplier Tubes  Photon Detectors  Operate on photoelectric effect  Amplification is obtained by a sequence high voltages applied across dynodes

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7 Completed counter

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9 LBL Electronics

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