X-ray diffraction in KDP crystal in the presence of temperature gradient |
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| Authors: | V Gh Mirzoyan K M Gevorgyan P A Grigoryan and T G Dovlatyan |
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| Affiliation: | (1) Department of Physics, Alabama A&M University, 35762 Normal, AL, USA;(2) Department of Physics, Alabama A&M University, 4900 Meridian Street, 35762 Normal, AL, USA;(3) Physics Department, Alabama Agricultural and Mechanical University, 4900 Meridian Street, P.O. Box 1268, 35763 Normal, AL, USA;(4) ISHM and Sensors Branch, NASA/George C. Marshall Space Flight Center, 35812 Huntsville, AL, USA;(5) Engineering Technology Management Office, NASA Marshall Space Flight Center, 35812 Huntsville, AL, USA |
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| Abstract: | We investigate the effect of temperature gradient on the intensity of X-ray radiation reflected from different atomic planes
of a KDP crystal, depending on the crystal thickness. We have studied the phenomenon of transfer of the X-ray beam intensity
for x- and z-cuts of the KDP crystal in the presence and in the absence of temperature gradient. It is shown that the intensities of reflected
radiations do not saturate because in conditions of the experiment the further increase in temperature gradient leads to destruction
of the sample. It is revealed that in some cases at small values of temperature gradient the intensity of reflected radiation
decreases initially by more than 10%, then increases monotonically with the increase in temperature gradient. |
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