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DATA While tuning up a medical cyclotron for use in isotope production, you obtain the data given in the table.
B (T) | 0.10 | 0.20 | 0.30 | 0.40 |
Kmax (MeV) | 0.068 | 0.270 | 0.608 | 1.080 |
B is the uniform magnetic field in the cyclotron, and Kmax is the maximum kinetic energy of the particle being accelerated, which is a proton. The radius R of the proton path at maximum kinetic energy has the same value for each magnetic-field value. (a) Compare the kinetic energy values in the table to the rest energy mc2 of a proton. Is it necessary to use relativistic expressions in your analysis? Explain. (b) Graph your data as Kmax versus B2. Use the slope of the best-fit straight line to your data to find R. (c) What is the maximum kinetic energy for a 0.25-T magnetic field? (d) What is the angular frequency ω of the proton when B = 0.40 T?
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Chapter 44 Solutions
University Physics with Modern Physics (14th Edition)
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