Small high-energy X-ray device and method

Abstract

The invention relates to a small high-energy X-ray device, and the device comprises an X-ray source magnet system, an X-ray tube and a power supply system; the X-ray source magnet system comprises six iron core yokes, two magnetic pole heads, two to four magnetic pole pads, two expansion coils and two circular excitation coils, and the six iron core yokes are distributed in a hexagonal star radial shape to form a cylindrical inner space; the two circular excitation coils are arranged in a cylindrical inner space formed by the two magnetic pole heads and the six iron core yokes and are coaxial with the magnetic pole heads; and the two expansion coils are arranged on the conical surfaces of the two magnetic pole heads and are coaxial with the magnetic pole heads. On the one hand, the size of the magnet can be reduced, the circumferential uniformity of magnet field distribution is improved, and the purpose of reducing the size of equipment is achieved, and on the other hand, electrons are injected through the falling edge of the current of the expansion coil, electrons are led out through the rising edge of the current of the expansion coil, and the X-ray yield is improved.

Description

technical field [0001] The invention relates to the field of X-ray sources, and more specifically, relates to an X-ray source generated by bombarding heavy metals with high-energy electrons. Background technique [0002] X-ray sources are widely used in many fields, including radiology, radiodiagnosis and other fields. [0003] At present, the X-ray sources used in the above applications are generally divided into two categories, one is an X-ray machine, and the other is an electron linear accelerator. The photon energy of the X-ray machine is generally tens of keV, so its penetrating ability is low. The photon energy of the electron linear accelerator can reach up to several MeV, but the structure of the electron linear accelerator is complicated, the volume is large, the construction and operation cost is high, and there are many vulnerable parts. The main components of the electron linear accelerator include electron gun, accelerating tube, modulator, magnetron, microwa...

AI Technical Summary

Problems solved by technology

The photon energy of the X-ray machine is generally tens of keV, so its penetration ability is low

The photon energy of the electron linear accelerator can reach up to several MeV, but the structure of the electron linear accelerator is complicated, the volume is large, the construction and operation cost is high, and there are many vulnerable parts

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