Final answer:
Gamma radiation is suitable for sterilizing hospital blankets due to its deep penetration properties, ensuring effective sterilization.
Step-by-step explanation:
The type of radiation suitable for hospital blankets is Gamma radiation. Gamma rays are very penetrating and can pass through a thick layer of most materials, making them effective for sterilizing medical equipment, including hospital blankets. Gamma radiation is used because it can reach all areas of complex-shaped objects, ensuring that all pathogens are destroyed. In comparison, Alpha radiation and Beta radiation have limited penetration and are stopped by a thin layer of materials or the skin, making them unsuitable for sterilizing objects like hospital blankets. X-ray radiation is generally used for diagnostic imaging rather than sterilization.