We are studying the temporal behavior of a magneto-optical trapping apparatus allowing
simultaneous cooling and trapping of Cs and Rb in a compact octagonal vapor cell. The
background vapor pressures of each species are independently controllable, as are the intensities
and frequencies of the respective trapping and repump lasers. Trap sizes and positions are
determined by a pair of CCD cameras which view the trap from orthogonal directions. Separate
photomultiplier tubes monitor fluorescence from the two species, permitting measurement of the
fill time of each trap in the presence or absence of the other. The apparatus is easily modified for
simultaneous trapping of the two Rb isotopes.