A simulation method for output data of energy spectrum ct system

Abstract

A method for simulating output data of an energy spectrum CT system, comprising: building a detector array on a simulation platform; setting an X-ray light source and a phantom; setting a physical module, and obtaining the total number of electron-hole pairs after collision according to the physical module ; Verification of post-collision electron‑hole pair populations by phantom imaging. The invention can not only improve the simulation speed and simulation accuracy of particle detection, but also can improve the accuracy and speed of generating medical data sets, and further promote the development of the field of medical image processing. The invention enriches related research methods, further simplifies the experiment process, and reduces the cost of manpower and material resources required by the experiment.

Description

technical field

[0001] The invention relates to a simulation method for outputting data. In particular, it relates to a method for simulating output data of an energy spectrum CT system during a CT scanning process and a photoelectric conversion process of a detector in the CT. Background technique

[0002] In recent years, Computed Tomography (CT) has developed rapidly and is widely used in clinical medicine, industrial diagnosis, security detection and other fields. In clinical medicine, CT technology is often used to obtain images of the internal structure of the human body in a non-invasive manner. The traditional CT technology not only cannot make full use of the X-ray source, but also has a considerable amount of radiation, which will cause many harms to the human body and face the risk of being eliminated. Compared with traditional CT, spectral CT has higher imaging accuracy and quality, better soft tissue contrast and lower radiation dose. At the same time, energy...

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