Characterization of Noise Sources in the n3He Parity Violating Asymmetry Measurement

The goal of the n3He Experiment was to measure the parity-violating proton directional asymmetry relative to the initial neutron polarization in the reaction $\vec{n}+ ^3He \rightarrow p + T + 765\;\mathrm{keV}$ to a high precision. Data taking completed at the end of 2015 yielding a preliminary proton asymmetry of $(1\pm1)\times10^{−9}$. In addition to neutron counting statistics there are smaller contributions to the uncertainty in the final asymmetry due to electronics and other instrumental noise sources. I will present a characterization of this noise and algorithms to minimize its contribution to the uncertainty of the proton asymmetry.