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Tipler6 25.P.034. An accelerator produces a beam of protons with a circular cross section that is...

Tipler6 25.P.034.

An accelerator produces a beam of protons with a circular cross section that is 1.6 mm in diameter and has a current of 0.8 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?
m-3

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


(c) What is the magnitude of the current density in this beam?
kA/m2

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Answer #1

kinetiu 2. 2 6千メ10 -27 7 4- べ = 4.02x) 3 าท airs per min 6ox pytrtons striki rS pet second

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