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If tumors are deep (a few centimeters), energies in the ____…

If tumors are deep (a few centimeters), energies in the _______________range (150-400 kVp) have been used.

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Which of the following means that all photons in the beam ha…

Which of the following means that all photons in the beam have the same energy?

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In collision interactions, _______________ interact with ele…

In collision interactions, _______________ interact with electrons in the target and transfer momentum and energy.

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In a Thoraeus filter, which of the following is nearest the…

In a Thoraeus filter, which of the following is nearest the x-ray tube?

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Which of the following describes the layers of material for…

Which of the following describes the layers of material for a Thoraeus filter?

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If an x-ray source has an output of 50 R at a distance of 10…

If an x-ray source has an output of 50 R at a distance of 10 feet, what will the intensity be at 4 feet?

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Alpha and beta particles are similar to x-rays and gamma ray…

Alpha and beta particles are similar to x-rays and gamma rays in that they _____.

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Which of the following describes the process of an electron…

Which of the following describes the process of an electron interacting with the positive charge (Coulomb field) of an atomic nucleus?

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What is the accepted SI unit of length?  

What is the accepted SI unit of length?  

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When a charged particle is put in motion, which of the follo…

When a charged particle is put in motion, which of the following statements is TRUE ?

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