> It should be emphasized that activity measures the source disintegration rate, which is not synonymous with the emission rate of radiation produced in it's decay. Frequently, a given radiation will be emitted in only a fraction of all the decays, so a knowledge of the decay scheme of the particular isotope is necessary to infer a radiation emission rate from its activity.[1]<p>It's a metric for a source - not a receiver. So if we're going to use Becquerels, then we're really talking about needing to characterize the sources making the requests, not the servers receiving them. Which is great information to characterize, but still leaves us needing a metric for counting the requests seen vs those that are started but never reach the server.<p>If we're still excited about doing things like people measuring radiation, then we could use counts per time unit. Like, counts per second, for example.<p>BUT - not all requests are equal. Next up, we measure how many resources are consumed in serving each request. I expect my next system dashboard to have a metric for RES (Röntgen Equivalent Server).<p>[1] Knoll, 'Radiation Detection and Measurement' (3rd Ed) p2.