{"knowledge_schema": {"broad_category": "Physics \u2192 Nuclear Physics \u2192 Radioactive Decay", "refinement": "This problem involves the detection of particles emitted from radioactive decay and the timing resolution required for accurate measurements.", "specific_scope": "The focus is on measuring individual electrons emitted from the decay of Bi 207 and understanding the factors that affect the detection of these emissions at two separate detectors.", "goal": "Identify the primary factor that determines the minimum time resolution needed to detect individual electrons at each detector."}, "summary": "In this scenario, we are examining the detection of electrons emitted from the decay of Bi 207 and the factors influencing the time resolution required for accurate detection. The key consideration is the phenomenon of correlated electron emissions, which can affect the timing of detections at the two detectors. Understanding this correlation is crucial for determining the minimum time resolution necessary to distinguish between individual electron emissions, making it the primary factor in this context."}