Linear injector system and beam control method

By introducing a radio frequency quadrupole accelerator and an interdigitated drift tube linear accelerator into the heavy ion beam therapy system, combined with a high radio frequency efficiency IH-DTL design, the compactness and efficiency problems of existing injector systems are solved, achieving high transmission efficiency and stability, and adapting to various ion therapy modes.

CN121531549BActive Publication Date: 2026-06-26GUOKE ION (HANGZHOU) MEDICAL TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
GUOKE ION (HANGZHOU) MEDICAL TECH CO LTD
Filing Date
2025-11-13
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing heavy ion beam therapy injector systems struggle to balance compactness, power consumption, and beam transmission efficiency, failing to achieve both high efficiency and high stability while simultaneously miniaturizing and adapting the system.

Method used

A linear injector system is adopted, including a radio frequency quadrupole accelerator and an interdigitated drift tube linear accelerator. The beam is initially compressed in phase width through the first beam-focusing section. The KONUS period in the interdigitated drift tube linear accelerator is used for phase width compression, acceleration and focusing. Combined with the high radio frequency efficiency IH-DTL design, the independent beam-focusing cavity and its supporting system are omitted.

Benefits of technology

The system achieves a high degree of compactness, with a transmission efficiency of up to 96.9%, reducing construction costs and power consumption, ensuring beam quality and operational stability, and adapting to various ion therapy needs.

โœฆ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121531549B_ABST
    Figure CN121531549B_ABST
Patent Text Reader

Abstract

The application provides a linear injector system and a beam control method, comprising: a radio frequency quadrupole accelerator, comprising a first bunching section arranged at the end of the radio frequency quadrupole accelerator, and the first bunching section is used for performing initial phase width compression on a beam; and at least one cross-finger drift tube linear accelerator, each comprising at least one KONUS period, and each KONUS period comprises, in sequence from an input end to an output end: a second bunching section, used for compressing the phase width of the beam from an upstream, so as to obtain a beam after phase width compression; an accelerating section, used for accelerating the beam after phase width compression at a constant synchronous phase, so as to obtain an accelerated beam; and a focusing section, used for focusing the accelerated beam in a plane perpendicular to the transmission direction, so as to obtain a focused beam.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Proton helium ion implanter

    CN119521518A

  • Method of manufacturing radio frequency accelerator, radio frequency accelerator, and circular accelerator system

    US20160014877A1