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arXiv · 1407.7524

Coherent neutrino-nucleus scattering detection with a CsI[Na] scintillator at the SNS spallation source

J. I. Collar·N. E. Fields·E. Fuller·M. Hai·T. W. Hossbach·J. L. Orrell·G. Perumpilly·B. Scholz
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Abstract

We study the possibility of using CsI[Na] scintillators as an advantageous target for the detection of coherent elastic neutrino-nucleus scattering (CENNS), using the neutrino emissions from the SNS spallation source at Oak Ridge National Laboratory. The response of this material to low-energy nuclear recoils like those expected from this process is characterized. Backgrounds are studied using a 2 kg low-background prototype crystal in a dedicated radiation shield. The conclusion is that a planned 14 kg detector should measure approximately 550 CENNS events per year above a demonstrated $\sim7$ keVnr low-energy threshold, with a signal-to-background ratio sufficient for a first measurement of the CENNS cross-section. The cross-section for the $^{208}$Pb($ν_{e},e^{-}$)$^{208}$Bi reaction, of interest for future supernova neutrino detection, can be simultaneously obtained.

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J. I. Collar, N. E. Fields, E. Fuller, M. Hai, T. W. Hossbach, J. L. Orrell, G. Perumpilly, B. Scholz. 2014-08-20. Coherent neutrino-nucleus scattering detection with a CsI[Na] scintillator at the SNS spallation source. https://doi.org/10.1016/j.nima.2014.11.037

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