[PRad] Beam current limit

[Eugene Pasyuk]

Good afternoon,

The TAC report for the DRad proposal is being prepared and they noticed that the proposal said that the beam current limitation is based on the 165 W power limit of the Faraday Cup. Recently the power limit of the FC was reviewed and lifted up to 1 kW. Which translates to 450 nA @2.2 GeV. So, the beam power is not a limiting factor anymore. We need to review again what is the limiting factor for the luminosity. It probably would be DAQ, perhaps GEM readout, or silicon strip detector readout. Also, HyCal rates may become too high if we increase luminosity.
Anyways, it needs to be looked at. This will be noted in TAC report.

-Eugene
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