  In recent years, dark matter direct detection experiments have spurred
interest in the Migdal effect, where it is employed to extend their sensitivity
to lower dark matter masses. Given the lack of observation of the Migdal
effect, the calculation of the signal is subject to large theoretical
uncertainties. It is therefore desirable to attempt a first measurement of the
Migdal effect, and to test the theoretical predictions of the Migdal effect for
the calibration of the experimental response to a potential dark matter signal.
In this work, we explore the feasibility of observing the Migdal effect in
xenon and argon. We carry out proof-of-concept calculations for low-energy
neutrons from a filtered source, and using a reactor, the Spallation Neutron
Source, or $^{51}$Cr as potential neutrino sources. We perform a detector
simulation for the xenon target and find that, with available technology, the
low-energy neutron source is the most promising, requiring only a modest
neutron flux, detector size, and exposure period.
