Project of the new multifunctional reflectometer GRAINS with horizontal sample plane at the IBR-2M pulsed reactor in Dubna

M. V. Avdeev, V. I. Bodnarchuk, V. V. Lauter-Pasyuk, H. Lauter, V. Aksenov, S. P. Yaradaikin, V. A. Ulyanov, V. A. Trounov, S. I. Kalinin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The new multifunctional reflectometer GRAINS is under construction at the modernized high flux IBR-2 pulsed reactor (IBR-2M) of the FLNP JINR (Dubna, Russia). The principal feature of this reflectometer, the horizontal sample plane (or vertical scattering plane), enables the study of liquid-containing interfaces. The reflectometer will operate in the time-of-flight regime with constant sample illumination during measurements. The important advantage is the constant angular resolution with unvaried background. The additional modes of the GRAINS reflectometer comprise (1) off-specular scattering and GISANS, which are measured simultaneously in the TOF regime at a 2D position-sensitive detector; (2) angular encoding in the horizontal plane, which is provided by a Larmor precession region limited by current sheets in front of the sample; (3) 3D polarimetry in reflection, which is provided by a Larmor precession region around the sample position. The design of the reflectometer is optimised to take better advantage of an exceptionally broad wavelength band of the new cold moderator at the IBR-2M. The set-up will open up principally new possibilities for investigations in the field of interface nano-science at the IBR-2M reactor.

Original languageEnglish
Article number012060
JournalJournal of Physics: Conference Series
Volume251
Issue number1
DOIs
Publication statusPublished - 2010

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reflectometers
reactors
Larmor precession
moderators
polarimetry
current sheets
Russian Federation
angular resolution
scattering
coding
illumination
detectors
liquids
wavelengths

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Project of the new multifunctional reflectometer GRAINS with horizontal sample plane at the IBR-2M pulsed reactor in Dubna. / Avdeev, M. V.; Bodnarchuk, V. I.; Lauter-Pasyuk, V. V.; Lauter, H.; Aksenov, V.; Yaradaikin, S. P.; Ulyanov, V. A.; Trounov, V. A.; Kalinin, S. I.

In: Journal of Physics: Conference Series, Vol. 251, No. 1, 012060, 2010.

Research output: Contribution to journalArticle

Avdeev, MV, Bodnarchuk, VI, Lauter-Pasyuk, VV, Lauter, H, Aksenov, V, Yaradaikin, SP, Ulyanov, VA, Trounov, VA & Kalinin, SI 2010, 'Project of the new multifunctional reflectometer GRAINS with horizontal sample plane at the IBR-2M pulsed reactor in Dubna', Journal of Physics: Conference Series, vol. 251, no. 1, 012060. https://doi.org/10.1088/1742-6596/251/1/012060
Avdeev, M. V. ; Bodnarchuk, V. I. ; Lauter-Pasyuk, V. V. ; Lauter, H. ; Aksenov, V. ; Yaradaikin, S. P. ; Ulyanov, V. A. ; Trounov, V. A. ; Kalinin, S. I. / Project of the new multifunctional reflectometer GRAINS with horizontal sample plane at the IBR-2M pulsed reactor in Dubna. In: Journal of Physics: Conference Series. 2010 ; Vol. 251, No. 1.
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