Status of the Tonne-Scale Sodium Iodide detector (NaIvETe) from the COHERENT collaboration.
ORAL
Abstract
Armed with a collection of detector subsystems of various target nuclei, the COHERENT collaboration made the first successful measurement of Coherent Elastic Neutrino Nucleus Scattering (CEvNS) on CsI in 2017, where a tens of MeV neutrino scatters off the nucleus as a whole with a keV-scale nuclear recoil as its method of detection. The pulsed nature of the SNS and known timing structure of the neutrinos allows for COHERENT to reduce backgrounds to measure CEvNS and other low energy neutrino interactions. With the deployment of the NaI neutrino Experiment at the Tonne-scale (NaIvETe) we plan to measure CEvNS on 23Na and continue the charged-current measurement of 𝞶e on 127I from its predecessor; the NaI neutrino Experiment (NaIvE), a 185-kg NaI[Tl] detector which began taking data in 2016. NaIvETe is currently being deployed at the SNS in 5 modules, where each module contains 63 NaI[Tl] crystals of 7.7-kg for a total mass of over 2.4 tonnes. Each crystal is equipped with a dual-gain base to see both the keV-scale CEvNS signal as well as the MeV-scale charged-current signal. A status of the NaIvETe deployment and work towards measurements will be presented.
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Presenters
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Jane O'Reilly
Duke University
Authors
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Jane O'Reilly
Duke University