5. Many hospitals use a cyclotron to produce radioactive isotopes for nuclear imaging or nuclear medicine. A cyclotron uses a strong magnetic field to keep protons moving in circular orbits. A proton begins in a small-diameter orbit with a low speed, but it is gradually accelerated with a clever use of electric fields to higher and higher speeds. This causes the orbit's diameter to gradually increase until the proton exits the machine from a large-diameter orbit. One commercial cyclotron uses a 2.0 T magnetic field.
5. Many hospitals use a cyclotron to produce radioactive isotopes for nuclear imaging or nuclear medicine. A cyclotron uses a strong magnetic field to keep protons moving in circular orbits. A proton begins in a small-diameter orbit with a low speed, but it is gradually accelerated with a clever use of electric fields to higher and higher speeds. This causes the orbit's diameter to gradually increase until the proton exits the machine from a large-diameter orbit. One commercial cyclotron uses a 2.0 T magnetic field.
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter39: Relativity
Section: Chapter Questions
Problem 39.77AP: The cosmic rays of highest energy are protons that m have kinetic energy on the order of 1013 MeV....
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a. How much time does it take a proton to complete one orbit?
b. What is the kinetic energy of a proton in an initial 1.0-mm-diameter orbit and in a final 1.0-m-diameter orbit?
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