Present status of sensitive detector of reactor’s antineutrinos using scintillating detectors

Journal Article · Mon Aug 17 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4928016· OSTI ID:22488730

Fajt, L.; Mamedov, F.; Přidal, P.; Špavorová, M.; Štekl, I. ^[1]; Belov, V.; Egorov, V. G.; Fomina, M.; Kuznetsov, A.; Ponomarev, D.; Rozova, I.; Zhitnikov, I. ^[2]; Burešová, H. ^[3]

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1. Institute of Experimental and Applied Physics, CTU in Prague (Czech Republic)
2. Joint Institute for Nuclear Research, Dubna (Russian Federation)
3. ENVINET a.s., Nuvia Group, Tǐebíč (Czech Republic)

In 2011, the reanalysis of the reactor antineutrinos spectra led to the formulation of the Reactor Antineutrino Anomaly (RAA) [1], which indicates the discrepancy between measured and expected antineutrino fluxes on short baselines. This discrepancy appears to favor the existence of the fourth “sterile” neutrino with |Δm{sup 2}|>1 eV{sup 2}. To confirm or reject this hypothesis a high sensitive antineutrino detector located close to the reactor is required. In addition to that such a detector could be used to online monitor the isotopic composition of the reactor core and to prevent illegal production and removal of{sup 239}Pu, which is the essential part of nuclear weapons. Detector DANSSino [2] already proved that even a compact antineutrino detector (∼ 1 m{sup 3}) based on polystyrene is capable of antineutrino detection in the close vicinity of a reactor core (∼ 10 m) with signal to background ratio about one. As a common activity between JINR Dubna and IEAP CTU a new prototype of detector (called S{sup 3}) has been proposed and is under construction. The construction design, selected results of Monte Carlo simulations and results of benchmark tests are presented.

• OSTI ID: 22488730
• Journal Information: AIP Conference Proceedings, Vol. 1672, Issue 1; Conference: LRT 2015: 5. international workshop in low radioactivity techniques, Seattle, WA (United States), 18-20 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BENCHMARKS
COMPUTERIZED SIMULATION
DESIGN
ELECTRON ANTINEUTRINOS
EV RANGE
HYPOTHESIS
ISOTOPE RATIO
JINR
MONTE CARLO METHOD
NEUTRINO DETECTION
POLYSTYRENE
REACTOR CORES
SCINTILLATION COUNTERS