Conceptual Design of the ARMAN Neutron Reflectometer at the WWR-K Reactor (INP, Almaty, Kazakhstan)
Nazarov K.M. Kulikbayeva D.A. Nurullin R. Mukhametuly B. Bekbayev A.K. Kenessarin M. Bodnarchuk V.I. Churakov A.V. Zernin N.D. Murashkevich S.M. Petukhova T.B. Avdeev M.V. Yerdauletov M.
January 2025L.N. Gumilyov Eurasian National University
Eurasian Journal of Physics and Functional Materials
2025#9Issue 41 - 9 pp.
The concept of the new experimental setup ¡ neutron reflectometer ARMAN (Almaty Reflectometer of MonochromАtic Neutrons) is presented. The instrument is to be placed at beamline 4 with thermal neutrons at the WWR-K reactor of the Institute of Nuclear Physics, Almaty, Kazakhstan. The instrument features a horizontal scattering geometry with a vertically oriented sample with the size of beam 2 £ 50 mm2. The reflectometer will operate with a monochromatic neutron beam in two modes: with and without polarization of the incident beam. The monochromatization will be provided by a double-crystal monochromator of pyrolytic graphite plates with the working wavelength range of 1.8—2.8 Å and expected resolution Δλ/λ in the range of 1—3 %. The schematics and main elements together with the numerical estimates of the expected neutron flux in different places of the beamline are discussed.
Detector system , Experimental facility , Neutron reflectometry , Research reactor WWR-K , Simulation , Technical parameters
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Laboratory of Neutron Physics, Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Faculty of Physics and Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, 141980, Russian Federation
Laboratory of Neutron Physics
Faculty of Physics and Technology
Frank Laboratory of Neutron Physics
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