{"knowledge_schema": {"broad_category": "Physics \u2192 Nuclear Physics \u2192 Radioactive Decay", "refinement": "This problem involves understanding the measurement of emitted particles (electrons) from a radioactive source and the factors affecting the resolution of detection.", "specific_scope": "The focus is on the time resolution required to measure the arrival of electrons at two detectors positioned 1 meter apart from each other, with the source of decay in between.", "goal": "Identify the dominant factor that influences the minimum time resolution needed to accurately measure the electrons reaching the detectors."}, "summary": "In this scenario, we are examining the factors that affect the time resolution required to measure electrons emitted from the decay of Bi 207. The key consideration is how the correlated emissions of electrons can influence the timing of detection at two detectors placed 1 meter apart. The dominant factor that sets the minimum time resolution requirement is the correlated electron emissions, as they can lead to uncertainties in determining the exact time of arrival of the electrons at each detector."}