Development and applications of a new neutron single-crystal diffractometer based on a two-dimensional large-area curved position-sensitive detector

Chang Hee Lee, Yukio Noda, Yoshihisa Ishikawa, Shin Ae Kim, Myungkook Moon, Hiroyuki Kimura, Masashi Watanabe, Yuki Dohi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A new single-crystal neutron diffractometer based on a large-area curved two-dimensional position-sensitive detector (C-2DPSD) has been developed. The diffractometer commissioning is almost complete, together with development of the measurement methodology and the raw data processing software package, the Reciprocal Analyzer, and the instrument is now ready to be launched for users. Position decoding of the C-2DPSD is via a delay-line readout method with an effective angular range of 110 × 54° in the horizontal and vertical directions, respectively, with a nominal radius of curvature of 530mm. The diffractometer is equipped with a Ge(311) mosaic monochromator and two supermirror vacuum guide paths, one before and one after the monochromator position. The commissioning incorporates corrections and calibration of the instrument using an NaCl crystal, various applications such as crystallographic and magnetic structure measurements, a crystallinity check on large crystals, and a study on the composition or dopant content of a mixed crystal of (Tm x Yb1-x )Mn2O5. The installation of the diffractometer and the measurement method, the calibration procedure and results, the raw data treatment and visualization, and several applications using the large C-2DPSD-based diffractometer are reported.

Original languageEnglish
Pages (from-to)697-708
Number of pages12
JournalJournal of Applied Crystallography
Volume46
Issue number3
DOIs
Publication statusPublished - 2013 Jun 1

Keywords

  • curved two-dimensional position-sensitive detectors
  • neutron diffractometers
  • single-crystal neutron diffraction

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Fingerprint Dive into the research topics of 'Development and applications of a new neutron single-crystal diffractometer based on a two-dimensional large-area curved position-sensitive detector'. Together they form a unique fingerprint.

Cite this