  In this work we consider searches for dark matter made of axions or
axion-like particles (ALPs) using resonant radio frequency cavities inserted
into dipole magnets from particle accelerators, wiggler magnets developed for
accelerator based advanced light sources, and toroidal magnets similar to those
used in particle physics detectors. We investigate the expected sensitivity of
such ALP dark matter detectors and discuss the engineering aspects of building
and tuning them. Brief mention is also made of even stronger field magnets that
are becoming available due to improvements in magnetic technology. It is
concluded that new experiments utilizing already existing magnets could greatly
enlarge the mass region in searches for axion-like dark matter particles.
