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Question

Cobalt-60 is used to irradiate tumors with γ-rays.
6027Co6028Ni+01e+γ
Which is responsible for destroying cancer-cells?

A
γrays
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B
αrays
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C
βrays
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D
None of these
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Solution

The correct option is A γrays
6027Co6028Ni+01e+γ
An external radiation procedure is known as the gamma knife radiosurgery and involves focusing gamma radiation from 201 sources of cobalt-60 sources on a precise area of the brain with a cancerous tumour. Worldwide, over 30,000 patients are treated annually, generally as outpatients.

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