“…For the December 2013 tritium dataset presented here, g 1 ,g 2 , and the extraction efficiency are measured to be 0.115 ± 0.005 phd/photon, 12.1 ± 0.9 phd/electron, and 50.9% ± 3.8%. The constraint was set by allowing g 1 and g 2 to float and fitting the data to a true tritium spectrum [10]. In the LUX Run 3 WIMP search, g 1 , g 2 , and the extraction efficiency are measured with mono-energetic source data and single electron events to be 0.117±0.003 phd/photon, 12.1 ± 0.8 phd/electron, and 49.1% ± 3.2% [3,16], consistent with the values adopted here.…”