System and method for terahertz quick tomography

Abstract

The invention relates to the technical field of medical imaging and public safety, in particular to a system and method for terahertz quick tomography. The system comprises a laser transmitting system, a transmission light path and a control system of the transmission light path, an objective table, an arc-shaped light guide antenna array, a terahertz detection array, a data collecting transmission system and a computer processing system. Due to the fact that a rotating laser beam is adopted to excite the arc-shaped light guide antenna array, a terahertz source does not need to perform mechanical motion in the imaging process. In addition, due to the fact that the terahertz source covers the range of the whole objective table, the objective table does not need to move either, and the emission source and the objective table are static in the imaging process. The terahertz emitting source is static in the imaging process, the objective table is also static, too many introduced mechanical errors are avoided, and scanning quality is improved.

Description

technical field [0001] The invention relates to the technical fields of medical imaging and public safety, in particular to a terahertz fast tomographic imaging system and method. Background technique [0002] At present, tomographic imaging technology mainly adopts X-ray CT technology and nuclear magnetic resonance technology. As a mature imaging method, X-ray CT technology has high density resolution, but its shortcomings are also very significant. X-ray energy is high. When irradiating human body or biological tissue, it will interact with body cells, body fluids and other substances, causing ionization of material molecules or atoms, and directly destroying macromolecules in the body such as protein, DNA, RNA and some important substances. Metabolic enzymes, and even directly damage the cell structure, causing cell cancer. The damage to germ cells, mainly chromosomal aberrations and gene mutations, will affect the offspring of the individual and cause serious genetic e...

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Problems solved by technology

In this way, the rotating platform needs to be gradually rotated at certain angular intervals to achieve multi-angle scanning. The scanning time is long, and motion artifacts are prone to occur, making it impossible to image organs such as the heart, and the mechanical rotation and translation of the scanning platform may bring more problems to the system. It is also inconvenient to rotate and translate the scanning table in the practical process. People have to rotate and translate with the scanning table, and the comfort and accuracy cannot be guaranteed.

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