DANSSino: a pilot version of the DANSS neutrino detector

Abstract

DANSSino is a reduced pilot version of a solid-state detector of reactor antineutrinos (to be created within the DANSS project and installed under the industrial 3 GW(th) reactor of the Kalinin Nuclear Power Plant -- KNPP). Numerous tests performed at a distance of 11 m from the reactor core demonstrate operability of the chosen design and reveal the main sources of the background. In spite of its small size (20x20x100 ccm), the pilot detector turned out to be quite sensitive to reactor antineutrinos, detecting about 70 IBD events per day with the signal-to-background ratio about unity.Comment: 16 pages, 11 figures, 3 tables. arXiv admin note: substantial text overlap with arXiv:1304.369

Neutrino oscillation studies with reactors

“…Multiple VSBR experiments have been proposed globally; in the U.S. (PROSPECT [120], NuLat [121]), France (NUCIFER [122,123], STEREO [110]), Russia (DANSS [124], NEUTRINO-4 [125,126], POSEI-DON [127]), U.K. (SOLID [128]), and Korea (HA-NARO [129]). Table II summarizes some of the key parameters of the proposed VSBR experiments.…”

Reactors antineutrino anomalies and searches for sterile neutrinos

“…The detector is installed under the industrial 3 GWth reactor of the Kalinin Nuclear Power Plant -KNPP) and a pilot version DANSSino is operated already [8].…”

DANSS: Detector of the reactor AntiNeutrino based on Solid Scintillator

“…In order to check operability of the DANSS design, compare different acquisition schemes and reveal the main origins of the background, a simplified pilot version of the detector was created. Figure 17 shows this small prototype -DANSSino [22,23], which is 1/25th part of the whole DANSS detector (2 modules of 50). Initial tests performed with DANSSino in JINR laboratory have shown huge number of false neutrino-like events caused by cosmic-ray fast neutrons with energy up to GeV [24].…”

“…In order to check operability of the DANSS design, compare different acquisition schemes and reveal the main origins of the background, a simplified pilot version of the detector was created. Figure 17 shows this small prototype -DANSSino [22,23], which is 1/25th part of the whole DANSS detector (2 modules of 50).…”