  We have made extensive reciprocal space maps in the heavy-fermion
superconductor URu2Si2 using high-resolution time-of-flight single-crystal
neutron diffraction to search for signs of a hidden order parameter related to
the 17.5 K phase transition. Within the present sensitivity of the experiment
(0.007 uB/U-ion for sharp peaks), no additional features such as incommensurate
structures or short-range order have been found in the (h0l) or (hhl)
scattering planes. The only additional low-temperature scattering observed was
the well-known tiny antiferromagnetic moment of 0.03 uB/U-ion.
