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Nuclear recoil detection with color centers in bulk lithium fluoride

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arxiv 2503.20732 v1 pith:NBD7DZW4 submitted 2025-03-26 nucl-ex hep-exhep-phphysics.ins-det

Gabriela A. Araujo , Laura Baudis , Nathaniel Bowden , Jordan Chapman , Anna Erickson , Mariano Guerrero Perez , Adam A. Hecht , Samuel C. Hedges
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Patrick Huber Vsevolod Ivanov Igor Jovanovic Giti A. Khodaparast Brenden A. Magill Jose Maria Mateos Maverick Morrison Nicholas W. G. Smith Patrick Stengel Stuti Surani Nikita Vladimirov Keegan Walkup Christian Wittweg Xianyi Zhang
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classification nucl-exhep-exhep-phphysics.ins-det
keywords nucleardetectionrecoilcenterscolorfastfluorescencefluoride
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We present initial results on nuclear recoil detection based on the fluorescence of color centers created by nuclear recoils in lithium fluoride. We use gamma rays, fast and thermal neutrons, and study the difference in responses they induce, showing that this type of detector is rather insensitive to gamma rays. We use light-sheet fluorescence microscopy to image nuclear recoil tracks from fast and thermal neutron interactions deep inside a cubic-centimeter sized crystal and demonstrate automated feature extraction in three dimensions using machine learning tools. The number, size, and topology of the events agree with expectations based on simulations with TRIM. These results constitute the first step towards 10-1000g scale detectors with single-event sensitivity for applications such as the detection of dark matter particles, reactor neutrinos, and neutrons.

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Cited by 3 Pith papers

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    A CASSCF+NEVPT2 study of the silicon G-center reports a 1.036 eV vertical excitation, zero-field-splitting components in partial agreement with experiment, and a 1.465 ms predicted spin-coherence time.

  2. Information-theoretic astrophysical uncertainties in the effective theory of dark matter direct detection

    hep-ph 2026-01 conditional novelty 5.0 of 10

    Using an information-theoretic bound on the halo velocity distribution, dark matter direct-detection limits vary from <10x to ~10,000x near threshold depending on the EFT operator, with higher velocity-weighting opera...

  3. Mineral Detection of Neutrinos and Dark Matter 2025 Proceedings

    physics.ins-det 2025-08 unverdicted novelty 4.0 of 10

    A workshop proceedings presenting 20 status reports on mineral detectors as passive, long-exposure nuclear recoil detectors for dark matter, neutrinos, and cosmic rays.

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