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Inelastic Neutron Scattering Spectrometer INDIGO (Indirect Geometry) at the DARIA Compact Neutron Source. / Pavlova, A. E.; Petrova, A. O.; Konik, P. I.; Pavlov, K. A.; Grigoriev, S. V.
в: Journal of Surface Investigation, Том 15, № 1, 01.2021, стр. 70-75.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Inelastic Neutron Scattering Spectrometer INDIGO (Indirect Geometry) at the DARIA Compact Neutron Source
AU - Pavlova, A. E.
AU - Petrova, A. O.
AU - Konik, P. I.
AU - Pavlov, K. A.
AU - Grigoriev, S. V.
N1 - Publisher Copyright: © 2021, Pleiades Publishing, Ltd.
PY - 2021/1
Y1 - 2021/1
N2 - Abstract: The characteristics of an indirect-geometry spectrometer and possibilities of its creation on a compact pulsed neutron source under conditions of its low luminosity are estimated. The configuration of a secondary spectrometer with a position-sensitive detector and a curved crystal analyzer is proposed, which ensures the capture of scattered neutrons at the largest solid angle. The main parameters of the instrument are calculated analytically. Based on the technical requirements for the parameters of the instrument, the numerical simulation is constructed and calculations of the instrument resolution as a function of the energy transfer are performed applying the Monte Carlo method. The analytical resolution function and the resolution function obtained from the simulation show good agreement when considering the contribution from the pulse width. An estimate of the neutron flux on the sample is obtained. The in-principle possibility of implementation of the neutron spectroscopy method under conditions of a compact source is shown.
AB - Abstract: The characteristics of an indirect-geometry spectrometer and possibilities of its creation on a compact pulsed neutron source under conditions of its low luminosity are estimated. The configuration of a secondary spectrometer with a position-sensitive detector and a curved crystal analyzer is proposed, which ensures the capture of scattered neutrons at the largest solid angle. The main parameters of the instrument are calculated analytically. Based on the technical requirements for the parameters of the instrument, the numerical simulation is constructed and calculations of the instrument resolution as a function of the energy transfer are performed applying the Monte Carlo method. The analytical resolution function and the resolution function obtained from the simulation show good agreement when considering the contribution from the pulse width. An estimate of the neutron flux on the sample is obtained. The in-principle possibility of implementation of the neutron spectroscopy method under conditions of a compact source is shown.
KW - compact neutron source
KW - indirect-geometry spectrometer
KW - Monte Carlo method
KW - neutron spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85104685501&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/56c3efd2-97b1-3e79-b8bd-f322176198d4/
U2 - 10.1134/s1027451021010122
DO - 10.1134/s1027451021010122
M3 - Article
AN - SCOPUS:85104685501
VL - 15
SP - 70
EP - 75
JO - ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ
JF - ПОВЕРХНОСТЬ. РЕНТГЕНОВСКИЕ, СИНХРОТРОННЫЕ И НЕЙТРОННЫЕ ИССЛЕДОВАНИЯ
SN - 1027-4510
IS - 1
ER -
ID: 86426465