Radioactive snow gauge

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radioactive snow gauge

A device that automatically and continuously records the water equivalent of snow on a given surface as a function of time.

A small sample of a radioactive salt is placed in the ground in a lead-shielded collimator that directs a beam of radioactive particles vertically upward. A Geiger–Müller counting system (located above the snow level) measures the amount of depletion of radiation caused by the presence of the snow.


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