sentences:  It was in 1958 that a nuclear effects simulator was first constructed in an abandoned dining hall at Kirtland.In the wake of the signing of the Partial Nuclear Test Ban Treaty in 1963, the Air Force Weapons Laboratory (AFWL) was created from the Research Directorate elements of the Special Weapons Center.The Special Weapons Center gave up much of its research and development work to the newly created Air Force Weapons Laboratory.