Proposed low-energy absolute calibration of nuclear recoils in a dual-phase noble element TPC using D-D neutron scattering kinematics

J. R. Verbus, C. A. Rhyne, D. C. Malling, M. Genecov, S. Ghosh, A. G. Moskowitz, S. Chan, J. J. Chapman, L. de Viveiros, C. H. Faham, S. Fiorucci, D. Q. Huang, M. Pangilinan, W. C. Taylor, R. J. Gaitskell

Research output: Contribution to journalArticle

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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 insitu 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 neutron source with a minimum possible peak energy of 272 keV. 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.

Original languageEnglish (US)
Pages (from-to)68-81
Number of pages14
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume851
DOIs
StatePublished - Apr 11 2017

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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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., & Gaitskell, R. J. (2017). Proposed low-energy absolute calibration of nuclear recoils in a dual-phase noble element TPC using D-D neutron scattering kinematics. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 851, 68-81. https://doi.org/10.1016/j.nima.2017.01.053