  In this technical report, the work done by members of the DAE$\delta$ALUS
collaboration on simulating the acceleration of 5 mA of H2+ in the IsoDAR
compact isochronous cyclotron is summarized. The findings are that sufficient
turn separation between the (N-1)th and Nth turn can be achieved with either
initially matched but also with mismatched beams by careful placement of
collimators to scrape away halo particles before the beam energy has reached 2
MeV/amu. Here we define "sufficient" as < 200 W beam loss on the septum. In the
acceleration simulations, beam losses on the collimators vary from 10% to 25%
depending on the initial beam conditions. The collimator placement in the
central region, halo formation, and turn separation at the final turn are
discussed. Finally, a scheme to further mitigate the risk of beam loss on the
extraction septum by placing a narrow stripping foil in front of it is
investigated. We also present the findings of a separate study subcontracted to
the company AIMA, who investigated injection of H2+ ions through a spiral
inflector and accelerating them for four turns. Here the reported beam loss
before 2 MeV/amu was 58%, but bunches were not accelerated further, so we are
not reporting this as a final result.
