Development of gas-filled position-sensitive detectors of thermal neutrons at the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research

Belushkin, Α. V.; Bogdzel, A.A.; Zhuravlev, V. V.; Kutuzov, S. A.; Levchanovskii, F. V.; Литвиненко, Е. И.; Jai, Li Yong; Panteleev, Ts.; Prikhodko, V.I.; Chernikov, A. N.; Чураков, А. В.; Shevtsov, V. N.

doi:10.1134/s1063783410050306

Cited by 15 publications

(2 citation statements)

References 2 publications

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“…The specular beam was detected by a 2D position-sensitive detector (size 20 × 20 cm 2 , resolution 2 × 2 mm 2 , sample-detector distance 3 m) [8] with the averaging of the reflected beam along the horizontal direction. The intensity was plotted as a function of the momentum transfer, q z = (4π/λ) sin θ ≈ 4πθ/λ, where θ is the fixed (5 mrad) incident grazing angle (see Fig.2) and λ is the neutron wavelength varied in the working interval of 0.1 -0.6 nm.…”

Section: Methodsmentioning

confidence: 99%

Studies of electrochemical interfaces by TOF neutron reflectometry at the IBR-2 reactor

Петренко

Gapon

Rulev

et al. 2018

J. Phys.: Conf. Ser.

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Abstract. The operation performance of electrochemical energy conversion and storage systems such as supercapacitors and batteries depends on the processes occurring at the electrochemical interfaces, where charge separation and chemical reactions occur. Here, we report about the tests of the neutron reflectometry cells specially designed for operando studies of structural changes at the electrochemical interfaces between solid electrodes and liquid electrolytes. The cells are compatible with anhydrous electrolytes with organic solvents, which are employed today in all lithium ion batteries and most supercapacitors. The sensitivity of neutron reflectometry applied at the time-of-flight (TOF) reflectometer at the pulsed reactor IBR-2 is discussed regarding the effect of solid electrolyte interphase (SEI) formation on metal electrode surface.

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Section: Methodsmentioning

confidence: 99%

Studies of electrochemical interfaces by TOF neutron reflectometry at the IBR-2 reactor

Петренко

Gapon

Rulev

et al. 2018

J. Phys.: Conf. Ser.

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“…Neutron experiments have been carried out using the RTD diffractometer (IBR-2M reactor, JINR [56]) in the cryostat with closed-cycle helium refrigerator and two position-sensitive detectors [57]. We have carried out neutron scans along the [0k0] direction over the temperature interval of (10-25) K with steps in temperature of 0.5 K and 0.2 K. Structural and magnetic parameters were refined using FullProf Suite program [58].…”

Section: Experiments Proceduresmentioning

confidence: 99%

Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals

Semkin¹,

Urusova²,

Beskrovnyĭ³

et al. 2022

Phys. Scr.

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The LiNiPO4, LiNi0.9Mn0.1PO4, and LiNi0.9Co0.1PO4 single crystals are studied with heat capacity and neutron diffraction measurements over the temperature interval (10–30) K. Two peaks are observed on the temperature dependence of heat capacity for LiNiPO4, and LiNi0.9Co0.1PO4 samples. One peak indicates the first order phase transition from an antiferromagnetic commensurate (C) structure to an incommensurate (IC) one upon heating. According to neutron diffraction, in LiNiPO4 the IC ordering is described by the propagation vector k = 2π/b(0, 0.080, 0) at the Néel temperature T N = 20.8 K, and k = 2π/b(0, 0.098, 0) at T N = 20.2(1) K for LiNi0.9Co0.1PO4. A further increase in temperature leads to the second order phase transition to a paramagnetic state at critical temperature T IC = 21.7 K and 21.1 K for LiNiPO4 and LiNi0.9Co0.1PO4, respectively. The C and IC phases coexist over the temperature interval (20.6–20.8) K and (20.2–21.2) K in LiNiPO4 and LiNi0.9Co0.1PO4, respectively. In the LiNi0.9Mn0.1PO4 the magnetic phase transition occurs at T N = 22.7 K, but a magnetic scattering is observed up to 24.6 K.

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Upgrade of detectors of neutron instruments at Neutron Physics Laboratory in Řež

Литвиненко

Ryukhtin

Bogdzel

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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Development of gas-filled position-sensitive detectors of thermal neutrons at the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research

Cited by 15 publications

References 2 publications

Studies of electrochemical interfaces by TOF neutron reflectometry at the IBR-2 reactor

Studies of electrochemical interfaces by TOF neutron reflectometry at the IBR-2 reactor

Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals

Upgrade of detectors of neutron instruments at Neutron Physics Laboratory in Řež

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Development of gas-filled position-sensitive detectors of thermal neutrons at the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research

Cited by 15 publications

References 2 publications

Studies of electrochemical interfaces by TOF neutron reflectometry at the IBR-2 reactor

Studies of electrochemical interfaces by TOF neutron reflectometry at the IBR-2 reactor

Magnetic phase transitions in the LiNi0.9 M 0.1PO4 (M = Mn, Co) single crystals

Upgrade of detectors of neutron instruments at Neutron Physics Laboratory in Řež

Contact Info

Product

Resources

About

Magnetic phase transitions in the LiNi_0.9 M _0.1PO₄ (M = Mn, Co) single crystals