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option 2:
workaround? maybe we could reuse the destination callback?
- has a limitation that we can only use 1 EB core
- Mona thinks that if "we" control destination callback then
  we can perhaps have more than 1 EB core.  SMD0 has to be in-charge

Question emailed to hutch scientists on mar 16, 2022:

As we move to higher rates we are thinking of ways we can support “integrating detectors”, e.g. a slow 1Hz camera running with a 1MHz high-speed detector (e.g. hsd) where you need to analyze precisely all 1MHz shots that contributed to the slow image (assuming that the slow device’s “shutter" is precise, which is likely not true for all devices … that’s a separate issue).

It will be difficult for us to support arbitrary integration periods for multiple detectors, e.g. detector1 integrating over shots 1,2,3 (and 4,5,6) while detector2 integrates over 1,2,3,4 (and 5,6,7,8).  We think we can support multiple detectors with one integrating at a “highest harmonic” (e.g. 1,2,3 then 4,5,6) and another simultaneously integrating in the same way, or at an integer “lower harmonic" (e.g., 1,2,3,4,5,6 then 7,8,9,10,11,12)

My question: can you let us know if you foresee that the above “highest harmonic” requirement would not be sufficient for your experiments?