What is the number density of the protons in the beam

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Reference no: EM13341988

An accelerator produces a beam of protons with a circular cross section that is 2.0 mm in diameter and has a current of1.1 mA. The current density is uniformly distributed throughout the beam. The kinetic energy of each proton is 20 MeV. The beam strikes a metal target and is absorbed by the target.

(a) What is the number density of the protons in the beam?

Answer: ______ m^-3

(b) How many protons strike the target in each minute?

Answer: ______

Answer: ______ kA/m^2

Reference no: EM13341988

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