1, use: X-ray plate cameras, can be installed in the X-ray machine in the production of various types at home and abroad, analyses the interior of a substance. Such as: single crystal orientation (reflection, transmission), determine the symmetry of the crystal, observation of crystal defects, shooting sheet bar texture, accurate determination of lattice constant, the determination of residual stress, etc. Therefore, can be widely used in petroleum chemical industry, metallurgy, machinery, geology, textile and other industrial departments, scientific research units and colleges and universities.
2, principle and structure:
A. principle: X ray produced by X ray tube from the incident light of the camera aperture and irradiation on the analysis of the sample, in Prague formula: n lambda = 2 dsin theta conditions, to produce X-ray diffraction images, the images recorded on the plates, and then calculation and analysis of the images, can understand the material internal structure.
B. structure: X ray plate cameras, mainly composed of back reflection phase box, transmission box, rotating rack, three round Angle measuring crystal units and base of five parts. Each part points mentioned below:
Box back reflection phase: the box can be around the incident X-ray beam direction or back swing. Incident aperture inserted into the box of center hole, X ray through the incident after the aperture become a bunch of fine and close to the line beam, irradiation on the sample, the reflection diffraction image record of plates in the box.