LIGHT FIBER-BASED SCINTILLATION DETECTOR Russian patent published in 2008 - IPC G01T1/20 G01T3/06 

FIELD: scintillation detectors of gamma- and neutron radiation, possible use for fundamental research in various areas of engineering.

SUBSTANCE: fiber scintillation detector contains an assembly of scintillation fibers, intended for registration of gamma-radiation (Bi₄Ge₃O₁₂ fibers), and a photo-detection device, the former and the latter being in optical contact with each other, where the assembly of scintillation fibers additionally contains fibers for registration of thermal neutrons and fibers for registration of fast neutrons, is positioned in a unified case with internal light-deflecting cover, is made in form of scintillation cable and has shape of a ring or an arch, and the photo-detection device consists of two photo-detectors, positioned in the opposite ends of the assembly of scintillation fibers. Fibers for registration of fast neutrons may be made of hydrogen-containing plastic, and fibers for registration of heat neutrons may be made of ⁶Li-containing silicate glass, activated by Ce³⁺. A spectrum shifter may be additionally included between the photo-detectors and the assembly of scintillation fibers.

EFFECT: creation of fiber-based scintillation detector, meant for simultaneous registration and detection of gamma- and neutron (fast and heat neutrons) radiations, which ensures extended flat angle of radiation registration: 2π or π.

3 cl, 2 dwg