Advanced neutron reflectometer for investigation on dynamic/static structures of soft-interfaces in J-PARC

Koji Mitamura, Norifumi L. Yamada, Hidenori Sagehashi, Hideki Seto, Naoya Torikai, Tsukasa Sugita, Michihiro Furusaka, Atsushi Takahara

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A novel neutron reflectometer with horizontal geometry will be established at BL16 in Materials and Life Science Experimental Facility (MLF) of Japan Proton Accelerator Research Complex (J-PARC) as a successor of a reflectometer ARISA-II. ARISA-II corresponding to a single neutron beam downward at 2.22 deg has achieved off-specular and time-resolved reflectivity measurements. The novel reflectometer is designed so as to receive two tilted neutron beams (2.22 & 5.71 deg), which gives us an opportunity in investigation on a free liquid surface. The reflectometer can provide a micro-sized beam by slit collimation and obtain a fair reflectivity with small sample area. Also, T0 chopper and neutron focusing mirror are newly introduced. The T0 chopper can suppress the background due to fast neutrons. The focusing mirror produces further reduction of measurement time not only for specular reflection by focusing neutrons on a sample, but also grazing incidence small-angle neutron scattering (GISANS) measurements by focusing on a detector.

Original languageEnglish
Article number012017
JournalJournal of Physics: Conference Series
Volume272
Issue number1
DOIs
Publication statusPublished - Jan 1 2011

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reflectometers
Japan
accelerators
neutrons
electric choppers
protons
neutron beams
mirrors
reflectance
life sciences
specular reflection
liquid surfaces
collimation
fast neutrons
materials science
grazing incidence
slits
neutron scattering
time measurement
detectors

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Advanced neutron reflectometer for investigation on dynamic/static structures of soft-interfaces in J-PARC. / Mitamura, Koji; Yamada, Norifumi L.; Sagehashi, Hidenori; Seto, Hideki; Torikai, Naoya; Sugita, Tsukasa; Furusaka, Michihiro; Takahara, Atsushi.

In: Journal of Physics: Conference Series, Vol. 272, No. 1, 012017, 01.01.2011.

Research output: Contribution to journalArticle

Mitamura, Koji ; Yamada, Norifumi L. ; Sagehashi, Hidenori ; Seto, Hideki ; Torikai, Naoya ; Sugita, Tsukasa ; Furusaka, Michihiro ; Takahara, Atsushi. / Advanced neutron reflectometer for investigation on dynamic/static structures of soft-interfaces in J-PARC. In: Journal of Physics: Conference Series. 2011 ; Vol. 272, No. 1.
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