Exploring current constraints on antineutrino production by <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Pu</mml:mi></mml:mrow><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>241</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> and paths towards the precision reactor flux era
نویسندگان
چکیده
By performing global fits to inverse beta decay (IBD) yield measurements from existing neutrino experiments based at highly $^{235}$U enriched reactor cores and conventional low-enriched cores, we explore current direct bounds on production by the sub-dominant fission isotope $^{241}$Pu. For this nuclide, determine an IBD of $\sigma_{241}$ = 8.16 $\pm$ 3.47 cm$^2$/fission, a value (135 58)% that conversion models. This constraint is shown derive non-linear relationship between burn-in $^{241}$Pu $^{239}$Pu in fuel. considering new hypothetical high-enriched, low-enriched, mixed-oxide, fast facilities, investigate feasible limits future knowledge yields for $^{235}$U, $^{238}$U, $^{239}$Pu, $^{241}$Pu, $^{240}$Pu. We find first measurement $^{240}$Pu can be performed plutonium-burning reactors, while suite correlated multiple types achieve precision meets or exceeds theoretical predictions.
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ژورنال
عنوان ژورنال: Physical review
سال: 2023
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.107.092010