ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,279, issued on Nov. 18, was assigned to ISTITUTO NAZIONALE DI FISICA NUCLEARE (Rome).

"Collimator" was invented by Roberto Bedogni (Rome) and Marco Costa (Turin, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compact and small size multichannel collimator for neutrons with energies up to 50 keV is provided. The collimator has a multichannel structure composed of collimating channels (in air, vacuum or in the non-interacting atmosphere of Helium-4) alternating with "full" channels made with absorbent materials for slow neutrons. The geometry of the individual collimating and absorbing channels can be arbitrary. The geometry with channels of s...