  The channeling of the recoiling nucleus in crystalline detectors after a WIMP
collision would produce a larger scintillation or ionization signal in direct
detection experiments than otherwise expected. I present estimates of
channeling fractions obtained using analytic models developed from the 1960's
onwards to describe channeling and blocking effects. We find the fractions to
be too small to affect the fits to potential WIMP candidates. I also examine
the possibility of detecting a daily modulation of the dark matter signal due
to channeling.
