  We proposed a method based on microwave magnetic dipole transitions to
prepare samples of atoms with well defined position and velocity. Each
microwave pulse corresponds to a position measurement for the atoms and two
pulses separated by a given delay result in a velocity measurement. The method
gives velocity sensitivity approaching that obtained with Raman transitions but
it is easier to implement. Moreover, it has the advantages that it also selects
in position and has less demanding experimental requirements. The method can be
demonstrated in a magneto-optical trap.
