Radioactivity module. "how-to" most popular article in one day questions thanks for the time to read this question. 

to me not is clear the concept of Radiactivity measures. how to get the most popular article in one day? I must use the half-life in 43200 seconds (12 hours)? when change this results? (each day in this case?), what's happen if I Cut-off energy to 0?. where is stored this results if I want a report per days?

thanks in advance.
According comparison of the Radioactivity results and a Analytics service, seems that 12 hours (in seconds) is the time needed to track 1 day.