Hot bending process detection method of rectangular channel X-ray detection lens
A rectangular channel and detection method technology, applied in the field of X-ray detection, can solve the problems that the production unit is difficult to implement the hot bending process in time and the test cost is high, and achieves the effects of low cost, high accuracy and easy access.
Active Publication Date: 2022-06-21
中国人民解放军61540部队
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Problems solved by technology
[0005] The purpose of the present invention is to provide a simple detection method for rectangular channel X-ray detection lenses, which overcomes the problems in the prior art that the test cost is very high and the production unit is difficult to detect the hot bending process in time. The present invention can Test and evaluate the hot bending process, the test method is convenient and quick, with high accuracy and low cost
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Embodiment 1
[0049] The diameter of the X-ray detection lens is 42mm×42mm, the radius of curvature of the hot-bending mold is 760mm, the initial hot-bending process is 653°C, and the temperature is kept for 3h.
[0050] Step 1: Place the convex side of the lens on the sample stage of the three-coordinate measuring instrument, take a point every 2mm on the surface of the lens, measure the three-coordinate value at the point, fit the radius of curvature of the entire lens, and fit the radius of curvature of the lens 656mm, less than the radius of curvature of the mold 760mm, the deviation is 13.7%, indicating that the hot bending temperature is too low or the holding time is too short. Adjust the hot bending system to 653°C for 5h. After re-bending, measure in the same way, the fitting obtains that the curvature radius of the lens is 775mm, and the deviation is 2%.
[0051] Step 2: The centerline of the lens is located at 21mm from the edge. Cut the lens along the centerline and place it un...
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According to the detection method of the rectangular channel X-ray detection lens, the problems that in the prior art, the test cost is very high, and a production unit cannot detect a hot bending process in time are solved, the hot bending process can be detected and evaluated, and the detection method is convenient, rapid, high in accuracy and low in cost. According to the invention, the apparent curvature test, the pointing test and the laser imaging test are combined to detect the hot bending process, and the development unit can correspondingly adjust the hot bending process according to the detection result to finally determine the hot bending process. The method comprises the following steps: step 1, fitting the apparent curvature radius of the lens by measuring three-coordinate numerical values of each part of the lens; and 2, measuring the actual direction of the channel by measuring the inclination angle of the channel at the section of the lens. And 3, testing imaging by adopting a laser imaging system.
Description
Technical field: [0001] The invention belongs to the technical field of X-ray detection, and relates to a detection method of a rectangular channel X-ray detection lens. Background technique: [0002] The rectangular channel X-ray detection lens is a curved glass lens based on microporous optics, which is regularly arranged into a rectangular array by millions of micron-scale rectangular channels. The lens uses the inner wall of the ultra-smooth channel to reflect and focus the grazing incident X-ray to realize the imaging detection of X-ray photons. It has the advantages of high resolution, light weight, and easy integration. Rectangular channel X-ray detection mirrors are used in the X-ray detection system of the spacecraft and the Mercury probe BepiColombo launched by the European Space Agency. [0003] The preparation of the rectangular channel X-ray detection lens adopts the method of preparing the micro-channel plate with glass fiber, that is, the glass core rod and t...
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IPC IPC(8): G01M11/02G01B11/26G01B11/255
CPCG01M11/02G01B11/255G01B11/26
Inventor 周庆勇朱永兴廉姣刘辉董联庆
Owner 中国人民解放军61540部队