The LD50/60 is the dose of radiation to the whole-body that will result in death within _____ to _____% of the irradiated population.

The correct answer indicates that the LD50/60 refers to the dose of radiation that will result in the death of 50% of the irradiated individuals within a period of 60 days. This measurement is crucial in understanding the effects of radiation exposure on living organisms, specifically in the context of acute radiation syndrome.

The term "LD" stands for "lethal dose," while the numbers represent the percentage of individuals affected and the time frame in which the lethality occurs. In this case, the number 50 signifies that half of the irradiated population is expected to die, and 60 refers to the duration of time (in days) over which this outcome is observed. This measurement helps in assessing the severity of radiation exposure and guides medical treatment protocols and emergency response planning in situations of nuclear accidents or radiation therapy.

Understanding this concept is essential in fields such as radiobiology, oncology, and emergency medicine, where the effects of radiation are a critical concern.