Ya. A. Eliovich, V. R. Kocharyan, A. E. Blagov, A. V. Targonsky, V. A. Korzhov, A. E. Movsisyan, A. V. Shahverdyan, S. N. Noreyan, A. G. Mkrtchyan, M. V. Kovalchuk
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引用次数: 0
Abstract
Peculiarities of X-ray beam diffraction from potassium and rubidium bi-phthalate piezo crystals under the condition of excitation of transverse ultrasonic vibrations are investigated. Previously, under a similar influence in quartz crystals, the effect of X-ray acoustic redistribution was observed, in which the intensity of diffracted radiation in the exact Bragg position increases significantly with a simultaneous decrease in the intensity of the transmitted beam, down to zero for certain parameters for reflecting atomic planes, called the full pumping effect. This effect can be used for controlled tuning of the diffracted beam intensity. In this work, to search for new materials for the creation of elements that allow such a rearrangement, we studied the dependences of the degree of amplification of diffracted radiation on the amplitude of the control signal for potassium and rubidium bi-phthalates crystals. The actual possibility of X-ray intensity modulation using transverse vibrations in these crystals is demonstrated.
摘要 研究了在横向超声振动激励条件下，钾和铷双酞酸酯压电晶体 X 射线束衍射的特殊性。此前，在石英晶体中的类似影响下，观察到了 X 射线声学再分布效应，即在精确布拉格位置上的衍射辐射强度显著增加，同时透射光束的强度下降，在反射原子平面的某些参数下降至零，称为全泵效应。这种效应可用于衍射光束强度的可控调节。在这项工作中，为了寻找新材料来制造可以进行这种重新排列的元素，我们研究了钾和铷双酞酸盐晶体的衍射辐射放大程度与控制信号振幅的关系。我们证明了在这些晶体中利用横向振动进行 X 射线强度调制的实际可能性。
期刊介绍：
Journal of Contemporary Physics (Armenian Academy of Sciences) is a journal that covers all fields of modern physics. It publishes significant contributions in such areas of theoretical and applied science as interaction of elementary particles at superhigh energies, elementary particle physics, charged particle interactions with matter, physics of semiconductors and semiconductor devices, physics of condensed matter, radiophysics and radioelectronics, optics and quantum electronics, quantum size effects, nanophysics, sensorics, and superconductivity.
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