کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1683836 1010515 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Neutron Bragg diffraction on a thick Ge single crystal excited by ultrasound
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Neutron Bragg diffraction on a thick Ge single crystal excited by ultrasound
چکیده انگلیسی

The intensities of neutron Bragg diffracted from the front- and back-faces of a 22 mm thick perfect Ge single crystal undergoing on ultrasound excitation has been measured and calculated theoretically. It is shown that at the same time as the acoustic wave amplitude is increased, the main Bragg peaks grow and the back-face peak becomes asymmetric and tends to disappear. Such a back-face scattering was observed for the first time and successfully described within frameworks of the dynamic theory of neutron scattering modified in the presence of ultrasound excitation and Kato’s quasiclassical approximation taking into account new ultrasonic extinction length appearance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 268, Issue 21, 1 November 2010, Pages 3411–3414
نویسندگان
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