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Updated: Jun 27, 2025

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激发信号优化,以尽量减少淘汰缓慢提取的波动

Philipp Niedermayer1, Rahul Singh2

  • 1GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany. p.niedermayer@gsi.de.

Scientific reports
|May 5, 2024
PubMed
概括

研究人员优化了用于粒子加速器的射频淘汰 (RF-KO) 系统. 改进的激发信号将缓慢提取过程中的强度波动最小化,提高实验和癌症治疗的效率.

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A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
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