91成人国产网站在线观看/丁香久久/国产亚洲欧美精品永久/久久黄色片/女人和拘做爰正片视频/人人妻人人藻人人爽欧美一区

Laue camera and high precision definite direction

Purpose:

Take pictures:utilize back shoot Lao E method to take pictures.The film is installed between the crystal and the radial source.
the incidence beams pass through the eyelet on the film.Record for backward diffraction beams,use the diffraction beam direction to measure the unknown shape and size of the crystal cell and to measure the crystal tropism and to assess the perfect crystal.Definite direction:carry on the precision to measure the angle and definite direction to the crystal material. Use x-ray to pass the prepositive monochrome machine,the diffraction beam is monochromatized and then irradiate on the sample.accord with the formula:nλ=2dsinθdiffraction and received by count tube to enlarge.show the strength by the meter and read the accurate angle value by the clinometer.

Main parameter: