Advertisement

Topics

Fuel-Composition Dependent Reactor Antineutrino Yield at RENO.

08:00 EDT 14th June 2019 | BioPortfolio

Summary of "Fuel-Composition Dependent Reactor Antineutrino Yield at RENO."

We report a fuel-dependent reactor electron antineutrino (ν[over ¯]_{e}) yield using six 2.8 GW_{th} reactors in the Hanbit nuclear power plant complex, Yonggwang, Korea. The analysis uses 850 666 ν[over ¯]_{e} candidate events with a background fraction of 2.0% acquired through inverse beta decay (IBD) interactions in the near detector for 1807.9 live days from August 2011 to February 2018. Based on multiple fuel cycles, we observe a fuel ^{235}U dependent variation of measured IBD yields with a slope of (1.51±0.23)×10^{-43}  cm^{2}/fission and measure a total average IBD yield of (5.84±0.13)×10^{-43}  cm^{2}/fission. The hypothesis of no fuel-dependent IBD yield is ruled out at 6.6σ. The observed IBD yield variation over ^{235}U isotope fraction does not show significant deviation from the Huber-Mueller (HM) prediction at 1.3 σ. The measured fuel-dependent variation determines IBD yields of (6.15±0.19)×10^{-43} and (4.18±0.26)×10^{-43}  cm^{2}/fission for two dominant fuel isotopes ^{235}U and ^{239}Pu, respectively. The measured IBD yield per ^{235}U fission shows the largest deficit relative to the HM prediction. Reevaluation of the ^{235}U IBD yield per fission may mostly solve the reactor antineutrino anomaly (RAA) while ^{239}Pu is not completely ruled out as a possible contributor to the anomaly. We also report a 2.9 σ correlation between the fractional change of the 5 MeV excess and the reactor fuel isotope fraction of ^{235}U.

Affiliation

Journal Details

This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 232501

Links

DeepDyve research library

PubMed Articles [8580 Associated PubMed Articles listed on BioPortfolio]

Measurement of the Electron Antineutrino Oscillation with 1958 Days of Operation at Daya Bay.

We report a measurement of electron antineutrino oscillation from the Daya Bay Reactor Neutrino Experiment with nearly 4 million reactor ν[over ¯]_{e} inverse β decay candidates observed over 1958...

First Search for Short-Baseline Neutrino Oscillations at HFIR with PROSPECT.

This Letter reports the first scientific results from the observation of antineutrinos emitted by fission products of ^{235}U at the High Flux Isotope Reactor. PROSPECT, the Precision Reactor Oscillat...

A fuel for generation IV nuclear energy system: Isotopic composition and radiation characteristics.

This paper reports on an important issue of designing appropriate nuclear fuel of a high-temperature gas-cooled nuclear reactor operating in a thorium-plutonium nuclear fuel cycle. The neutronic calcu...

Using a hybrid-like supported catalyst to improve green fuel production through hydrothermal liquefaction of Scenedesmus obliquus microalgae.

Hydrothermal liquefaction of Scenedesmus obliquus has been optimized in a micro reactor using response surface methodology. Temperature, residence time and feedstock concentration were studied through...

Two- vs. single-stage anaerobic reactors: evaluation of effluent quality and energy production potential using sucrose-based wastewater.

Two- and single-stage anaerobic treatment systems were assessed for treatment performance and for bioenergy production from sucrose-based wastewater. In the two-stage system, a hydrogen-producing upfl...

Clinical Trials [2106 Associated Clinical Trials listed on BioPortfolio]

Immunity and Safety of Inactivated Enterovirus 71 Vaccine Post-marketing Among Children Aged 6-35 Months in China

This study evaluates three batches consistency, immunity duration and safety of inactivated Enterovirus 71(EV-A71) vaccine(vero cell) post-marketing among children aged 6-35months in China...

Reactor Thoracostomy

Tube thoracostomy is commonly performed in the emergency department for patients suffering from traumatic hemo- or pneumo-thorax. The procedure involves the use of a scalpel incision at th...

Reactor Thoracostomy

Tube thoracostomy is commonly performed in the emergency department for patients suffering from traumatic hemo- or pneumo-thorax. The procedure involves the use of a scalpel incision at th...

Metabolic Effects of the SGLT-2 Inhibitor Empagliflozin in Patients With Diabetic Nephropathy (MEDiaN)

The MEDiaN study aims to examine the state of fuel metabolism in participants with diabetic nephropathy (DN) before and after the use of the sodium-glucose transport protein 2 inhibitor (S...

Statins in Proteinuric Nephropathies

End stage renal disease (ESRD) is rapidly growing worldwide. Patients with ESRD have increased morbidity and mortality mostly because of a dramatic excess of cardiovascular disease. Thus, ...

Medical and Biotech [MESH] Definitions

Liquid, solid, or gaseous waste resulting from mining of radioactive ore, production of reactor fuel materials, reactor operation, processing of irradiated reactor fuels, and related operations, and from use of radioactive materials in research, industry, and medicine. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

Uranium. A radioactive element of the actinide series of metals. It has an atomic symbol U, atomic number 92, and atomic weight 238.03. U-235 is used as the fissionable fuel in nuclear weapons and as fuel in nuclear power reactors.

A broad-spectrum antibiotic derived from KANAMYCIN. It is reno- and oto-toxic like the other aminoglycoside antibiotics.

An ATP-dependent exodeoxyribonuclease that cleaves in either the 5'- to 3'- or the 3'- to 5'-direction to yield 5'-phosphooligonucleotides. It is primarily found in BACTERIA.

The relative amounts of the PURINES and PYRIMIDINES in a nucleic acid.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article