1. Proposed low-energy absolute calibration of nuclear recoils in a dual-phase noble element TPC using D-D neutron scattering kinematics
- Author
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Verbus, J. R., Rhyne, C. A., Malling, D. C., Genecov, M., Ghosh, S., Moskowitz, A. G., Chan, S., Chapman, J. J., de Viveiros, L., Faham, C. H., Fiorucci, S., Huang, D. Q., Pangilinan, M., Taylor, W. C., and Gaitskell, R. J.
- Subjects
Physics - Instrumentation and Detectors ,Astrophysics - Instrumentation and Methods for Astrophysics ,High Energy Physics - Experiment - Abstract
We propose a new technique for the calibration of nuclear recoils in large noble element dual-phase time projection chambers used to search for WIMP dark matter in the local galactic halo. This technique provides an $\textit{in situ}$ measurement of the low-energy nuclear recoil response of the target media using the measured scattering angle between multiple neutron interactions within the detector volume. The low-energy reach and reduced systematics of this calibration have particular significance for the low-mass WIMP sensitivity of several leading dark matter experiments. Multiple strategies for improving this calibration technique are discussed, including the creation of a new type of quasi-monoenergetic 272 keV neutron source. We report results from a time-of-flight based measurement of the neutron energy spectrum produced by an Adelphi Technology, Inc. DD108 neutron generator, confirming its suitability for the proposed nuclear recoil calibration., Comment: 21 pages, 18 figures, 6 tables
- Published
- 2016
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