X-ray precise modulation device and control method based on iterative feedback

Abstract

The invention provides an iterative feedback-based X-ray accurate modulation apparatus and a control method therefor. The apparatus comprises a measurement module which is used for measuring high-speed current density close to the positive electrode of an X light pipe, and X photon stream density output by the X light pipe in real time, a regulation and control module which is used for performing comparison on the received high-speed current density and X photon stream density with an external input signal to obtain a regulation and control signal, and a feedback loop which is used for transmitting the regulation and control signal to the X light pipe so as to allow the X light pipe to perform corresponding feedback control according to the regulation and control signal. According to the iterative feedback-based X-ray accurate modulation apparatus and the control method therefor, high-accuracy simulation of the X ray pulsar photon arrival process can be realized through short and long term iterative feedback, so that higher simulation accuracy of a photon arrival time event can be realized.

Description

technical field [0001] The invention relates to the technical field of optical signal simulation, in particular to an iterative feedback-based X-ray precise modulation device and a control method thereof. Background technique [0002] Optical signal simulation refers to a simulation method that uses instruments and equipment to simulate natural optical signals and accurately presents their physical characteristics at the receiving end. In the simulation of X-ray signals, X-ray tubes are usually used as the equipment for generating X-photons. Its working mechanism can be expressed as the electro-optical conversion process of metal materials, that is, the X-ray characteristic spectrum radiation generated after the high-speed electron flow hits the anode metal target. mechanism. Due to the randomness of factors such as the working environment of the X-ray tube and the characteristics of the anode target material, the electro-optical conversion process cannot be deterministical...

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Problems solved by technology

The disadvantage of this method is that it is difficult to develop and realize, and the technical level is relatively high.

[0007] From the above analysis, it can be seen that the above three methods have their own use conditions and are all open-loop control systems, which do not include the real-time working status of the system into the control link, so it is difficult to achieve high-precision simulation of the electro-optic conversion process with random factors

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