Final answer:
Beam-shaping filters are generally composed of aluminum and teflon because they possess specific properties suitable for beam shaping applications.
Step-by-step explanation:
Beam-shaping filters are generally composed of aluminum and teflon. These materials are chosen because they possess specific properties that are suitable for beam shaping applications. Aluminum is often used for its high reflectivity, while teflon is used for its low reflectivity and ability to shape the light beam.
Beam-shaping filters, used in radiation therapy procedures, are generally composed of aluminum and Teflon to create a uniform dose distribution. Hence, both options A (aluminum) and C (Teflon) are correct.
In the process of radiation therapy in medical Physics, beam-shaping filters, made predominantly from aluminum or low atomic number (Z) materials, are used. The materials may also include plastics like Teflon. These filters are designed to manufacture a uniform dose distribution inside the patient and to modify the radiation beam's intensity. As a result, options 1) aluminum and 3) Teflon are right. Thus, we can say, statement 4) 'A and C are correct' is the best answer.
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