Neutron Photoproduction from $^{181}$Ta with Linearly Polarized $\gamma$-rays between 11 and 15.5 MeV*

Data have been collected at the High Intensity $\gamma$-ray Source (HI$\gamma$S) to investigate neutron emission from a $^{181}$Ta target with linearly polarized gamma rays at $E_\gamma$= 11, 12, 13, 14, and 15.5 MeV. Liquid scintillator detectors were placed at scattering angles of 55$^\circ$, 90$^\circ$ and 125$^\circ$ above, below and to the left and right of the target. Four additional detectors were placed at angles of 72$^\circ$ and 107$^\circ$ along the top and right. The $E_\gamma$ dependence of the ratios of neutron yields, $\frac{I_{para}}{I_{perp}}$ are examined. The ratio at 90$^\circ$ should depend only on the $P_2\left(cos\left(\theta\right)\right)$ coefficient in the angular distribution. A comparison of these results will be discussed.