E0617

IMAGING OF SMALL-ANGLE SCATTERING FOR ENHANCED RADIOGRAPHY. Thomas Rieker, University of New Mexico, Advanced Materials Laboratory, 1001 University Blvd. S.E., Albuquerque, NM 87106

Small-angle x-ray or neutron scattering, which arises from differences in scattering contrast, can be imaged to produce radiographs of objects. This is unlike standard radiography which relies on absorption contrast. Since the fundamental mechanisms of scattering and absorption differ, new information can be gleaned. Of particular interest is the shifting of contrast between regions within an object by changing the q at which the small-angle image is produced. Small-angle radiographs make it possible to study objects with little or no absorption contrast. Scattering and absorption radiographs of a variety of objects using both neutrons and x-rays will be compared and the instrumentation used will be discussed.