X-ray interference fringes in transmitted beam of bragg mode from very weakly bent crystal

Sukswat Jongsukswat, Tomoe Fukamachi, Kenji Hirano, Dongying Ju, Riichirou Negishi, Masayuki Shimojo, Keiichi Hirano, Takaaki Kawamura

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Interference fringes from a Si plane-parallel crystal have been observed in the topography of the transmitted beam in the Bragg mode when the crystal is very weakly bent. The period of the interference fringes becomes large as the distance from the incident point of the X-ray to the emitted point of the beam increases. The interference fringes are caused by interference between the transmitted beams in the Bragg mode with twice internal reflections from the bottom and top surfaces and those without any internal reflection. When these interference fringes are observed, another interference fringes are observed in the emitted beams from the lateral surface even when the distance from the incident point to the crystal edge is 13.5 mm. This indicates that X-rays propagate over a long distance, i.e., over a centimeter distance in the crystal, and the very weakly bent crystal acts as an X-ray waveguide.

Original languageEnglish
Article number094804
JournalJournal of the Physical Society of Japan
Volume81
Issue number9
DOIs
Publication statusPublished - 2012 Sep

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interference
crystals
x rays
topography
waveguides

Keywords

  • Bent crystal
  • Bragg-Laue diffraction
  • Dynamical diffraction
  • Hologram
  • Interference fringe
  • Mirage fringe

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

X-ray interference fringes in transmitted beam of bragg mode from very weakly bent crystal. / Jongsukswat, Sukswat; Fukamachi, Tomoe; Hirano, Kenji; Ju, Dongying; Negishi, Riichirou; Shimojo, Masayuki; Hirano, Keiichi; Kawamura, Takaaki.

In: Journal of the Physical Society of Japan, Vol. 81, No. 9, 094804, 09.2012.

Research output: Contribution to journalArticle

Jongsukswat, S, Fukamachi, T, Hirano, K, Ju, D, Negishi, R, Shimojo, M, Hirano, K & Kawamura, T 2012, 'X-ray interference fringes in transmitted beam of bragg mode from very weakly bent crystal', Journal of the Physical Society of Japan, vol. 81, no. 9, 094804. https://doi.org/10.1143/JPSJ.81.094804
Jongsukswat, Sukswat ; Fukamachi, Tomoe ; Hirano, Kenji ; Ju, Dongying ; Negishi, Riichirou ; Shimojo, Masayuki ; Hirano, Keiichi ; Kawamura, Takaaki. / X-ray interference fringes in transmitted beam of bragg mode from very weakly bent crystal. In: Journal of the Physical Society of Japan. 2012 ; Vol. 81, No. 9.
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abstract = "Interference fringes from a Si plane-parallel crystal have been observed in the topography of the transmitted beam in the Bragg mode when the crystal is very weakly bent. The period of the interference fringes becomes large as the distance from the incident point of the X-ray to the emitted point of the beam increases. The interference fringes are caused by interference between the transmitted beams in the Bragg mode with twice internal reflections from the bottom and top surfaces and those without any internal reflection. When these interference fringes are observed, another interference fringes are observed in the emitted beams from the lateral surface even when the distance from the incident point to the crystal edge is 13.5 mm. This indicates that X-rays propagate over a long distance, i.e., over a centimeter distance in the crystal, and the very weakly bent crystal acts as an X-ray waveguide.",
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AU - Hirano, Kenji

AU - Ju, Dongying

AU - Negishi, Riichirou

AU - Shimojo, Masayuki

AU - Hirano, Keiichi

AU - Kawamura, Takaaki

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