Formation of interference fringes in the Bragg-(Bragg)m-Laue mode.
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.
Hirano
Kenji
K
Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama 369-0293, Japan. q6006qqp@sit.jp
Fukamachi
Tomoe
T
Yoshizawa
Masami
M
Negishi
Riichirou
R
Hirano
Keiichi
K
Kawamura
Takaaki
T