system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Half-Life of Cobalt-60
assistant
The correct answer is  Cobalt-60 – 5.2 years
Cesium-137 – 30 years
Iridum-192 – 74.5days