The ReactionC12(γ, 3p)Li9

A carbon target was bombarded in a partially-converted 270-Mev electron beam. The 0.168-second ${\mathrm{Li}}^9$ delayed neutron activity produced in the block was compared with the $\beta$ activity produced in a polystyrene foil bombarded in the same beam. The measured integrated cross section for ${\mathrm{C}}^{12}(\gamma , 3p){\mathrm{Li}}^9$ is (6.9±2)×${10}^{-5\mathrm{}}$ Mev barn.