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Which of the following is NOT a source of energy for external radiation therapy? A. beta B. x-ray C. gamma D. proton

2 Answers

2 votes

its "a". i took the test.

User Beanwah
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3 votes
The answer must be A. beta.

A beta it is not a source of energy for external radiation therapy.

Hope it helped!

Have a great day!

-Charlie
User Jhoepken
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