NEUTRON AND GAMMA-RAY RECORDING DETECTOR Russian patent published in 2000 - IPC

Abstract RU 2158011 C2

FIELD: radiation monitoring. SUBSTANCE: scintillation sensor placed in additional collimator has gamma-ray sensing Bi₄Ge₃O₁₂(BGO) crystal scintillator in the form of crystal with well accommodating insert of stilbene or plastic base neutron- sensing material and photoelectronic multiplier; in addition, amplitude sync- pulse analyzer is placed in electronic signal-processing unit at output of time selection circuit. Collimator is double-layer structure made of hydrogen- containing polyethylene neutron moderator (external layer) and cadmium neutron absorber (internal layer). Detector operates in telescopic mode to ensure directional recording of neutrons. EFFECT: improved signal-to-noise ratio of neutron-sensing insert of detector. 2 cl, 1 dwg

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RU 2 158 011 C2

Authors

Shul'Gin B.V.

Petrov V.L.

Shul'Gin D.B.

Sitnikov E.G.

Rajkov D.V.

Plaksin F.G.

Dates

2000-10-20—Published

1998-06-04—Filed