| 11. | Some radiate only in visible light, others only in X rays and radio waves.
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| 12. | It was the first mineral that was discovered with the assistance of X rays.
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| 13. | The energies involved are comparable, and hence, a CRT tube in fact produces X rays.
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| 14. | X Ray examinations were made at the Bute Hospital.
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| 15. | Also, the x rays will be contaminated with those coming from the electron conversion process.
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| 16. | This program has a wider target, because it includes laboratory materials like X ray film.
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| 17. | He later studied what effect did X rays and radium radiation have on the physiological action.
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| 18. | During a CT scan, x rays of the patient's brain are taken from many different directions.
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| 19. | Her chest X ray showed a large heart.
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| 20. | X rays marked black holes and solar flares.
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