  The current design of beam preparation for a proposed mu->e conversion
experiment at Fermilab is based on slow resonant extraction of protons from the
Debuncher. The Debuncher ring will have to operate with beam intensities of 3 x
10**12 particles, approximately four orders of magnitude larger than its
current value. The most challenging requirements on the beam quality are the
spill uniformity and low losses in the presence of large space charge and
momentum spread. We present results from simulations of third integer resonance
extraction assisted by RF knock-out (RFKO), a technique developed for medical
accelerators. Tune spreads up to 0.05 have been considered.
