If the recently observed anomaly in the PVLAS experiment is due to the
axion, then the powerful beams of synchrotron photons, propagating through
high magnetic field of the HERA beamline, become strong axion sources.
This gives a unique opportunity of detection of the axion-photon
interactions by installing a small detector in the HERA tunnel, and to
corroborate the axion hypothesis within a few days of running.
(CP3-07-01 preprint http://cp3.phys.ucl.ac.be/index.php?src=list_preprint)