FP12 Pulsed Cold Neutron Beam Line for Fundamental Nuclear Physics at LANSCE

A new pulsed cold neutron beam line, flight path 12, has been commissioned at LANSCE by the NPDGamma collaboration. The beam line was designed for fundamental nuclear physics experiments. We present the measured brightness of the unique backscattering moderator viewed by the flight path 12 neutron guide and report results for guide performance measurements. The peak neutron flux out of the guide is dN/dE= 2.4×105 neutrons/meV/cm2/s/μA at 2 meV neutron energy.