DATA: 11-12-2017

The CHANDLER experiment aims to make a measurement of very short baseline neutrino oscillations using reactor anti-neutrinos. For this purpose, a highly segmented detector was build out of PVT cubes lined with a 6LiF:ZnS(Ag)layer. Unlike neutrino experiments conducted deep underground, neutrino detectors used in a reactor environment need to operate in high levels of background radiation with very low shielding. Therefore, a reliable distinction between the neutrons produced in inverse beta decay events and signals caused by other background interaction is crucial. The composite of scintillation materials with different time constants enables the efficient use of pulse-shape analysis to discriminate against electromagnetic signals. In this talk I will present the first observation of anti-neutrino interactions in the miniChandler detector. MiniCHANDLER was deployed at the North Anna power station near reactor 1 from June till November 2017. A description of signal nad background at the North Anna plant will be presented with a first preliminary anti-neutrino energy spectrum. C. Mariani (Virginia Tech)


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