Development of a backlit-multi-pinhole radiography source.

Backlit-pinhole radiography uses a pinhole placed between an x-ray source and a sample. The backlit-multi-pinhole design uses two pinholes on the same substrate, which are separated by a wall, to create two radiographic images projected along similar axes. The wall, a 100-m thick titanium foil, prevents x-rays generated near one pinhole from exiting the other pinhole.