18-22 February 2019
Vienna University of Technology
Europe/Vienna timezone

Detection of epithermal and fast neutrons with Ce doped GAGG and LYSO scintillation materials. New advantages for TOF techniques.

Not scheduled
15m
Vienna University of Technology

Vienna University of Technology

Gusshausstraße 27-29, 1040 Wien
Board: 35
Poster Miscellaneous Poster Session B

Speakers

Prof. Mikhail Korzhik (Research Institute for Nuclear Problems, Minsk, Belarus ;NRC “Kurchatov Institute”, Moscow, Russia )Dr Hans-Georg Zaunick (Justus-Liebig-Universität )

Description

Recently, we demonstrated that epithermal and fast neutrons produce distinct γ-quanta in the energy range bellow 1 MeV in Gd containing media. These soft quanta can be detected in the scintillation material, containing Gd ions. One of the promising candidates for this purpose is gadolinium-gallium-aluminum garnet Gd3Al2Ga3O12 (GAGG) doped with Ce, having high light yield and excellent energy and time resolution. In addition to Gd, another atom, namely Lu, has large neutron cross section for epithermal and fast neutrons. Hence, lutetium silicate Lu2SiO5 (LSO-LYSO) scintillation crystal’s family can be used for this purpose as well.
This report presents results on the comparative study of the response of GAGG and LYSO based scintillation detectors to different neutron sources. Time resolution to detect neutrons with SiPM based detectors is evaluated. Detecting units for TOF neutron spectrometers are described.
Acknowledgements

The work is supported by grant № 14.W03.31.0004 of Russian Federation Government. Authors are grateful to FOMOS-Crystals (Russia) and Saint Gobain (France) for the samples for measurements.

Primary authors

Prof. Mikhail Korzhik (Research Institute for Nuclear Problems, Minsk, Belarus ;NRC “Kurchatov Institute”, Moscow, Russia ) Prof. Kai-Thomas Brinkmann (Justus Liebig University) Dr Hans-Georg Zaunick (Justus-Liebig-Universität ) Dr Georgy Dosovitskiy (NRC “Kurchatov Institute”) Dr Valery Dormenev (Justus-Liebig-Universität) Dr Andrei Fedorov (Institute for Nuclear Problems Belarus State University) Mr Dmitry Kozlov (Institute fro Nuclear Problems Belarus State University ) Dr Vitaly Meshinsky (Institute fro Nuclear Problems Belarus State University) Mr Pavel Orsich (Institute for Nuclear Problems Belarus State University)

Presentation Materials