Answer :
Final answer:
The frequency of delivery for a molybdenum generator is typically based on the half-life of molybdenum-99 (66 hours) to ensure a continuous supply of technetium-99m for medical imaging. Deliveries are carefully scheduled to align with this half-life, often resulting in deliveries every 2 to 3 days.
Explanation:
The frequency of delivery for a molybdenum generator, specifically the molybdenum-99/technetium-99m generator, is typically scheduled based on the half-life of molybdenum-99, which is 66 hours. Hospitals require a consistent supply of technetium-99m, which is derived from the decay of molybdenum-99, for various medical imaging procedures. The short half-life of technetium-99m at 6 hours necessitates its production close to the point of care, minimizing decay during transport. Therefore, the molybdenum generator's delivery is carefully timed to ensure a steady availability of technetium-99m.
As an example, if a hospital requires fresh supplies of technetium-99m daily, the molybdenum generator would be delivered at intervals that align with the half-life of molybdenum-99, ensuring minimal decay and maximum efficiency for medical use. Considering the 66-hour half-life of molybdenum-99, frequent deliveries every 2 to 3 days might be arranged to maintain an effective supply of technetium-99m.