Details

Autor(en) / Beteiligte

• Abreu, Y.
• Amhis, Y.
• Arnold, L.
• Ban, G.
• Beaumont, W.
• Bongrand, M.
• Boursette, D.
• Buhour, J.M.
• Castle, B.C.
• Clark, K.
• Coupé, B.
• Cucoanes, A.S.
• Cussans, D.
• Roeck, A. De
• D'Hondt, J.
• Durand, D.
• Fallot, M.
• Fresneau, S.
• Ghys, L.
• Giot, L.
• Guillon, B.
• Guilloux, G.
• Ihantola, S.
• Janssen, X.
• Kalcheva, S.
• Kalousis, L.N.
• Koonen, E.
• Labare, M.
• Lehaut, G.
• Mermans, J.
• Michiels, I.
• Moortgat, C.
• Newbold, D.
• Park, J.
• Petridis, K.
• Piñera, I.
• Pommery, G.
• Popescu, L.
• Pronost, G.
• Rademacker, J.
• Reynolds, A.
• Ryckbosch, D.
• Ryder, N.
• Saunders, D.
• Shitov, Yu.A.
• Schune, M.-H.
• Scovell, P.R.
• Simard, L.
• Vacheret, A.
• Dyck, S. Van
• Mulders, P. Van
• Remortel, N. van
• Vercaemer, S.
• Waldron, A.
• Weber, A.
• Yermia, F.

Titel

A novel segmented-scintillator antineutrino detector

Ist Teil von

• Journal of instrumentation, 2017-04, Vol.12 (4), p.P04024-P04024

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The next generation of very-short-baseline reactor experiments will require compact detectors operating at surface level and close to a nuclear reactor. This paper presents a new detector concept based on a composite solid scintillator technology. The detector target uses cubes of polyvinyltoluene interleaved with 6LiF:ZnS(Ag) phosphor screens to detect the products of the inverse beta decay reaction. A multi-tonne detector system built from these individual cells can provide precise localisation of scintillation signals, making efficient use of the detector volume. Monte Carlo simulations indicate that a neutron capture efficiency of over 70 % is achievable with a sufficient number of 6LiF:ZnS(Ag) screens per cube and that an appropriate segmentation enables a measurement of the positron energy which is not limited by γ-ray leakage. First measurements of a single cell indicate that a very good neutron-gamma discrimination and high neutron detection efficiency can be obtained with adequate triggering techniques. The light yield from positron signals has been measured, showing that an energy resolution of 14%/√E(MeV) is achievable with high uniformity. A preliminary neutrino signal analysis has been developed, using selection criteria for pulse shape, energy, time structure and energy spatial distribution and showing that an antineutrino efficiency of 40% can be achieved. It also shows that the fine segmentation of the detector can be used to significantly decrease both correlated and accidental backgrounds.