2014
DOI: 10.1103/physrevlett.112.122501
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Experimental Determination of the Antineutrino Spectrum of the Fission Products ofU238

Abstract: An experiment was performed at the scientific neutron source FRM II in Garching to determine the cumulative antineutrino spectrum of the fission products of U238. Target foils of natural uranium were irradiated with a thermal and a fast neutron beam and the emitted β spectra were recorded with a γ-suppressing electron telescope. The obtained β spectrum of the fission products of U235 was normalized to the data of the magnetic spectrometer BILL. This method strongly reduces systematic errors in the U238 measure… Show more

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Cited by 118 publications
(117 citation statements)
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“…The total background rate is found to be B = 1.56 +0. 18 −0.16 events/day from the output of the fit. Figure 19 shows the correlation of the expected and observed IBD candidate rate with the best-fit prediction.…”
Section: Reactor Rate Modulation Analysismentioning
confidence: 99%
See 1 more Smart Citation
“…The total background rate is found to be B = 1.56 +0. 18 −0.16 events/day from the output of the fit. Figure 19 shows the correlation of the expected and observed IBD candidate rate with the best-fit prediction.…”
Section: Reactor Rate Modulation Analysismentioning
confidence: 99%
“…In addition, a measurement of the spectrum from 238 U [18] is newly used in this analysis with an extrapolation below 3 MeV and above 7.5 MeV, using a combination of the summation method [19] and an exponential-polynomial fit on the data. In the previous analysis, the 238 U contribution was derived from a calculation [20].…”
Section: Reactorν E Predictionmentioning
confidence: 99%
“…1. The experimental data cited here are from a series of extensive measurements by the group of Schreckenbach et al [8][9][10][11]. They measured the energy spectra of electron from fissionable-nuclide samples under irradiation using a spectrometer called BILL [12] at the Institute of Laue-Langevin.…”
Section: Calculation Resultsmentioning
confidence: 99%
“…As a result, fissile actinides such as 232 Th and 233 Pa do not contribute to the antineutrino emission from the reactor. The antineutrino spectra from 235, 238 U and 239, 241 Pu have been previously determined by converting the measured electron emission following neutron irradiation at ILL and FRM II [10,11]; while the antineutrino spectra from the fission of 233 U is not available in open literature, and must be estimated through an aggregate summation method.…”
Section: Antineutrino Emissionmentioning
confidence: 99%