aCORN on the new NIST cold neutron beam line

The aCORN experiment is measuring the electron-antineutrino angular correlation $a$ in neutron beta decay. Precision measurement of $a$ will improve the determination of the nucleon axial vector coupling constant $G_A$, and along with other decay parameters can be used to test the validity and self-consistency of the Standard Model and to explore the physics beyond it. The goal of the aCORN experiment is to determine $a$ to a relative accuracy of $1\%$. After two years on the NG-6 beam line at NIST, aCORN has now moved to a new higher flux NG-C beam line with some apparatus upgrades. The characterization of the new beam line and the upgrades to the apparatus will be presented.