title: Formation of interference fringes in the Bragg-(Bragg)m-Laue mode.
abstract: X-ray interference fringes in the beams diffracted from a lateral surface of a thin plane-parallel crystal are measured and analyzed using Wagner's approach [Wagner (1956), Z. Phys. 146, 127-168]. It is found that the fringes are caused by the interference between the internal waves excited by the incident beam in both the Bragg-Laue case and the Bragg-Bragg-Laue case. The period of the interference fringes is shown to be proportional to the distance between the incident point of the X-ray and the crystal edge, and to be inversely proportional to the crystal thickness.
authors.affiliation: Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama 369-0293, Japan. q6006qqp@sit.jp
authors.forename: Kenji
authors.initials: K
authors.lastname: Hirano
authors.forename: Tomoe
authors.initials: T
authors.lastname: Fukamachi
authors.forename: Masami
authors.initials: M
authors.lastname: Yoshizawa
authors.forename: Riichirou
authors.initials: R
authors.lastname: Negishi
authors.forename: Keiichi
authors.initials: K
authors.lastname: Hirano
authors.forename: Takaaki
authors.initials: T
authors.lastname: Kawamura