Question: 2. Calculate the energy threshold for producing Cherenkov light in water (n = 1.333), air (n =1.000293) and helium (n = 1.000036) for electron,

2. Calculate the energy threshold for producing Cherenkov light in water (n

2. Calculate the energy threshold for producing Cherenkov light in water (n = 1.333), air (n =1.000293) and helium (n = 1.000036) for electron, proton and a particles. Over what ranges of energy could you cleanly identify these three particles using a system of three threshold Cherenkov detectors filled with water, air and helium? %3D

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