Fast cycle synchrotron with homogeneous transverse beam current, and accelerator system

Abstract

The invention provides a fast cycle synchrotron with a homogeneous transverse beam current. The fast cycle synchrotron comprises a plurality of magnets, a magnet power supply, a vacuum pipeline, a beam current diagnostic unit and an ion extraction unit, wherein the plurality of magnets are used for synchronously accelerating ions, and the plurality of magnets comprises a two-pole magnet, a quadrupole magnet and a six-pole magnet; the magnet power supply is electrically connected with the magnets; the vacuum pipeline is configured to connect the plurality of magnets and limit moving trajectories of the ions; the beam current diagnostic unit is configured to monitor operating states of the accelerator and the beam current; and the ion extraction unit is connected to the vacuum pipeline, is used for extracting the accelerated ions and comprises a nonlinear multi-pole magnet arranged on an ion beam line, and the nonlinear multi-pole magnet is used for homogenizing the extracted beam current. The synchrotron adopts a full-capacitance energy storage magnet power supply technology, combines a multi-pole magnet transverse beam current homogenization technology, shortens the cycle period and greatly improves the average beam current intensity.

Description

Technical field [0001] The present invention relates to the field of accelerators, and more specifically, to a synchrotron capable of making the output beam current of the accelerator more uniform and higher average current intensity, and an accelerator system including the synchrotron. Background technique [0002] Because the proton beam and heavy ion beam have the characteristics of inverted depth dose distribution, small side scattering, high relative biological effect and low oxygen increase ratio, the proton and heavy ion beams have become a cancer treatment. Today’s internationally advanced and effective cancer radiotherapy methods. Proton beams and heavy ion beams can also simulate the radiation environment of outer space, and are effective methods for single event effects in space and radiation detection of instruments. Protons and heavy ions can be used in the production of nuclear pore membranes, in the separation of biological agents, battery separators, anti-counter...

AI Technical Summary

Problems solved by technology

The slow extraction process takes a lot of time. Taking the cancer treatment device HIMM in Wuwei City, Gansu Province as an example, the slow extraction process lasts for 3s, that is, the terminal only obtains accelerated ions once within 3s, so its efficiency is low, and the average beam current The flow intensity is much smaller than that of linear accelerators and cyclotrons

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