Engineering topics
Lewis, C. A.
Publications and source records attributed to Lewis, C. A..
New measurement of antineutrino oscillation with the full detector configuration at Daya Bay
We report a new measurement of electron antineutrino disappearance using the fully constructed Daya Bay Reactor Neutrino Experiment. The final two of eight antineutrino detectors were installed in the summer of 2012. Including the 404 days of data collected from October 2012 to November 2013 resulted in a total exposure of 6.9×10 5 GW th ton days, a 3.6 times increase over our previous results. Improvements in energy calibration limited variations between detectors to 0.2%. Removal of six 241 Am- 13 C radioactive calibration sources reduced the background by a factor of 2 for the detectors in the experimental hall furthest from the reactors. Direct prediction of the antineutrino signal in the far detectors based on the measurements in the near detectors explicitly minimized the dependence of the measurement on models of reactor antineutrino emission. The uncertainties in our estimates of 2 sin2θ 13 and |Δm 2 ee | were halved as a result of these improvements. An analysis of the relative antineutrino rates and energy spectra between detectors gave 2 sin2θ 13 =0.084±0.005 and |Δm 2 ee |=(2.42±0.11)×10 –3 eV 2 in the three-neutrino framework.
A comprehensive computer program for predicting solar cell performance
Comprehensive computer program for predicting solar cell performance
Solar cell characteristics at high solar intensities and temperatures
Si solar cells with and without cover slides performance in severe thermal and light environment /near sun missions/
Engineering study of elevated temperature solar cell panel fabrication techniques
Solar cell array fabrication for operation at 173- 383 K, discussing honeycomb sandwich substrate using epoxy-novolac-fiberglass facings and Al core