Detector Development for A Neutrino Magnetic Moment Measurement

Details Detector Development for A Neutrino Magnetic Moment Measurement Detector Development for A Neutrino Magnetic Moment Measurement

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..osf.c2005w&link_type=abstract

American Physical Society, Fall Meeting of the Ohio Section, October 17-18, 2003, Case Western Reserve University, Cleveland Ohi

Physics

Scientific paper

Neutrino properties such as mass and magnetic moment are effective ways to probe for new physics beyond the Standard Model. Interest in a neutrino magnetic moment (NMM) is due to the importance of neutrinos in the dynamics of stellar processes and in solar neutrino problem. A proposed project with an intense tritium antineutrino source and ultra-low threshold cryogenic detectors will probe NMM at a much lower level than that of nuclear reactor experiments. Using heat amplification resulting from a high voltage applied across a silicon detector, the recoil energy from neutrino electron interactions is amplified. The primary phonons created by the recoil and the secondary phonons created by accelerating electrons and holes in the external electric field are collected with superconducting transition edge sensors (TES) on the surface of the detector, and the signal is read out with a SQUID measurement system. The primary recoil energy from neutrino electron interaction is thus amplified. In this talk, I will present the detector configuration, a model of thermal gain relation and it's dependence on the TES thermal parameters, and test results that suggest an energy threshold of 25 eV is achievable.

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