Studio portrait of David Radford, a corporate fellow at ORNL.

David C. Radford

Corporate Fellow

[email protected]

Corporate Fellow

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David Radford is a native of New Zealand, where he studied at Auckland University. He was a staff scientist at Chalk River Laboratories in Ontario, Canada, before moving to ORNL in 1997. With long experience using germanium detectors for nuclear structure and fundamental physics research, he has worked on GRETINA/GRETA, the Majorana Demonstrator, and the Large Enriched Germanium Experiment for Neutrinoless ββ Decay (LEGEND-1000). LEGEND-1000 is an international project to search for a hypothesized very rare decay of atomic nuclei, called neutrinoless double-beta decay, using one tonne of Ge detectors enriched in Ge-76. If seen, this decay would prove that the neutrino and anti-neutrino are the same particle and that Lepton Number is not conserved. It could help solve the long-standing question of how the Big Bang produced the universe with an excess of matter over antimatter.

David was the U.S-DOE Project Director of LEGEND-1000 until 2026. He currently serves as the Managing Director of the Consolidated (international) LEGEND-1000 project.

Publications

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Additional Publications

  1. First Results on the Search for Lepton Number Violating Neutrinoless Double-β Decay with the LEGEND-200 Experiment; H. Acharya et al. (LEGEND Collaboration), PHYSICAL REVIEW LETTERS 136 022701 (2026)

  2. Multiple valence-space and core-excited band terminations in Ho and Er isotopes; ES Paul et al., PHYSICAL REVIEW C 113 064322 (2026)

  3. Rare multinucleon decays with the full data sets of the MAJORANA DEMONSTRATOR; IJ Arnquist et al., PHYSICAL REVIEW C 112 L022501 (2025)

  4. Final Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of 76Ge to Excited States of 76Se; IJ Arnquist et al., PHYSICAL REVIEW LETTERS 134 242501 (2025)

  5. Development of a silicon drift detector array to search for keV-scale sterile neutrinos with the KATRIN experiment; D Siegmann et al., JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 51 (8) (2024)

  6. Search for charge non-conservation and Pauli exclusion principle violation with the MAJORANA DEMONSTRATOR; IJ Arnquist et al., NATURE PHYSICS 20 (7) (2024)

  7. Exotic Dark Matter Search with the MAJORANA DEMONSTRATOR; IJ Arnquist et al., PHYSICAL REVIEW LETTERS 132 041001 (2024)

  8. Constraints on the Decay of 180mTa; J Arnquist et al., PHYSICAL REVIEW LETTERS 131 152501 (2023)

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