Simultaneous scanning and framing X-ray measurement system

Abstract

The invention discloses a simultaneous scanning and framing X-ray measurement system. The system comprises a dual-channel X-ray imaging system, a transmission type X-ray coding plate, an X-ray streakcamera and a decoder connected with the X-ray streak camera. The simultaneous scanning and framing X-ray measurement system can simultaneously record a one-dimensional continuous change process imageand a two-dimensional framing image of a to-be-measured target by adopting the same recording system from the same visual angle, has the advantages of compact structure, small occupied space and hightime correlation precision of the scanning image and the framing image, and has a wide application prospect in laser inertial confinement fusion physical experiment research.

Description

technical field [0001] The invention belongs to the field of laser fusion research and the field of X-ray detection, and in particular relates to a simultaneous scanning and framing X-ray measurement system. Background technique [0002] In the research of laser inertial confinement fusion physics experiments, X-ray streak cameras and X-ray framing cameras are usually used to precisely measure the spatio-temporal evolution process of the target to be measured. The X-ray streak camera can continuously scan and measure the one-dimensional change process of the X-ray emitted by the target to be measured, so that the moving speed information of the target to be measured can be obtained, but the X-ray streak camera does not have two-dimensional spatial resolution, so it cannot The emitted X-rays are used for framing measurement to give the two-dimensional spatial distribution state of the target to be measured. The X-ray framing camera is a measurement device with two-dimensiona...

AI Technical Summary

Problems solved by technology

However, the X-ray framing camera has a small number of images, and the time interval between each image is large, and it is impossible to obtain the continuous time change process of the target to be measured. It can only give the state at some separation moments, but cannot give Measure the moving speed of the target

Therefore, it is usually necessary to use the X-ray streak camera and the X-ray framing camera to jointly diagnose the state of the target to be measured from different positions. Although this can give the moving speed and two-dimensional spatial distribution of the target to be measured at the same time, there is a problem of occupying the target. Large room space, large parallax between measuring devices, etc., and because the images are recorded by their own recording devices, the time correlation error between images is also large, which has a significant impact on the precision of physical experiments

Images