  A 3.2 MeV injector has been designed and built for the Darht II Project at
Los Alamos Lab. The installation of the complete injector system is nearing
completion at this time. The requirements for the injector are to produce a 3.2
MeV, 2000 ampere electron pulse with a flattop width of at least 2-microseconds
and emittance of less than 0.15 p cm-rad normalized. A 16.5 cm diameter hot
emitter cathode is used. This paper will describe the design and fabrication of
major Cathode Assembly components and test performance of subsystems to date.
Mechanical and thermal issues will be emphasized. More detailed discussion of
the active alignment system used to maintain the stringent cathode alignment
requirement.
