Limitations to Total Booster Flux
Total protons per batch:  4E12 with decent beam loss, 5E12
max.
Average rep rate of the machine:
Injection bump magnets (7.5Hz)
RF cavities (7.5Hz, maybe 15 w/cooling)
Kickers (15 Hz)
Extraction septa (was 2.5Hz, now 15Hz)
Beam loss
Above ground:
Shielding
Occupancy class of Booster towers
Tunnel losses
Component damage
Activiation of high maintenance items (particularly RF cavities)