Observation of the Isotopic Evolution of Pressurized Water Reactor Fuel Using an Antineutrino Detector

Abstract

By operating an antineutrino detector of simple design during several fuel cycles, we have observed long term changes in antineutrino flux that result from the isotopic evolution of a commercial Pressurized Water Reactor (PWR). Measurements made with simple antineutrino detectors of this kind offer an alternative means for verifying fissile inventories at reactors, as part of International Atomic Energy Agency (IAEA) and other reactor safeguards regimes.

arXiv comment9 pages, 8 figures; Submitted to Journal of Applied Physics v2: added new figure plus various clarifications and grammatical revisions

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• Physics with Reactor Neutrinos
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