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Spark Chambers The spark chamber is based on the simple fact that if the voltage across two metal plates separated by a distance of a few centimeters is increased beyond a certain value, a breakdown in the form of sparking occurs. The spark chamber consists of a series of thin parallel plates spaced a few millimeters apart, as shown Fig. The first, third, fifth and...

Scintillation Counter and Ionization Chamber Scintillation Counter A scintillation counter is very sensitive device used in nuclear physics for detection and measurement of high energy radiation. In principle, it is based on the fact that α-particles on striking a fluorescent material like zinc sulphide produce tiny flashes of light. These flashes are called scintillations...