Wide-aperture back-scattering detector (BSD) for the High-Resolution Fourier Diffractometer (HRFD) at the IBR-2 reactor


Kruglov V.V. Balagurov A.M. Belova M.O. Bobrikov I.A. Bogdzel A.A. Bodnarchuk V.I. Bulavina V.V. Daulbaev O. Drozdov V.A. Zhuravlev V.V. Kirilov A.S. Kulikov S.A. Kurilkin A.K. Milkov V.M. Murashkevich S.M. Podlesnyy M.M. Prikhodko V.I. Churakov A.V. Shvetsov V.V.
2021IOS Press BV

Journal of Neutron Research
2021#23Issue 4243 - 250 pp.

The high-resolution Fourier diffractometer (HRFD) operates at the IBR-2 pulsed reactor, on which the correlation method of data registering has been implemented using a fast Fourier chopper and specialized electronics. A wide-aperture ring back-scattering detector for HRFD has been developed. The detector consists of six Z n S ( A g ) / 6 L i F-scintillation rings, each one of which is divided into 12 sections. Main parameters of this detector: covered solid angle 2 θ = ( 133 - 175 )°; ω d ≈ 2.0 sr; average absorption efficiency 85 %, geometric contribution to resolution Δd / d < 0.0005. The concept of a detector and its data acquisition system are presented.

detector electronics , neutron detectors , Neutron diffraction

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Joint Institute for Nuclear Research (JINR), Moscow region, Dubna, 141980, Russian Federation
Moscow Institute of Physics and Technology (National Research University), Moscow region, Dolgoprudny, 141701, Russian Federation
The Institute of Nuclear Physics, Ministry of Energy of the Republic of Kazakhstan, Almaty, 050032, Kazakhstan
Al-Farabi Kazakh National University, Almaty, 050038, Kazakhstan

Joint Institute for Nuclear Research (JINR)
Moscow Institute of Physics and Technology (National Research University)
The Institute of Nuclear Physics
Al-Farabi Kazakh National University

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