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Question
A radiographer was asked to detect the cracks in cast iron articles. Which of the following rays and radioactive isotopes he should use for this detection?
A radiographer was asked to detect the cracks in cast iron articles. Which of the following rays and radioactive isotopes he should use for this detection?
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Solution
The correct option is C Gamma rays, cobalt-60
Gamma rays have very low ionization power and are used to detect flaws in metal work. These rays are used to detect the internal cracks and voids in cast iron articles and iron solder. For this purpose the radioactive isotopes like cobalt-60, iridium-192 are used in the radiography camera.
Gamma rays have very low ionization power and are used to detect flaws in metal work. These rays are used to detect the internal cracks and voids in cast iron articles and iron solder. For this purpose the radioactive isotopes like cobalt-60, iridium-192 are used in the radiography camera.
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