Focheng Liu
Tsinghua University
12 Papers
1 Citations
Focheng Liu is an academic researcher from Tsinghua University. The author has contributed to research in topics: Linear particle accelerator & RF power amplifier. The author has an hindex of 1, co-authored 6 publications.
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Papers
Development and high-gradient test of a two-half accelerator structure
Maomao Peng,Jiaru Shi,Hao Zha,Xiancai Lin,Zening Liu,Yuliang Jiang,Jian Gao,Liu-Yuan Zhou,Focheng Liu,Xiangcong Meng,Huaibi Chen +10 more
TL;DR: In this article, the authors report on the design, fabrication, RF measurement, and high-power test of a prototype accelerator, such as 11.424 GHz with 12 cells, and a traveling wave of two halves.
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Design of a compact variable x-band rf power splitter
Focheng Liu,Huaibi Chen,Jiayang Liu,Zening Liu,Jiaru Shi,Hao Zha +5 more
- 23 Jul 2019
TL;DR: In this article, a compact variable X-band RF power splitter with an E-bend waveguide structure was designed for high power test stand at Tsinghua Uni-versity.
Design and Measurements of an X-Band 8 MeV Standing-Wave Electron Accelerator
Focheng Liu,Huaibi Chen,Jiaru Shi,Chuanxiang Tang,Hao Zha +4 more
- 01 Aug 2021
Abstract: X-band low-energy electron linear accelerators are attractive to industrial and medical applications due to the compact size. This work we present design and tests of an 8 MeV X-band accelerator for industrial use. It adopts the coaxial coupling standing wave structure working at 9300 MHz. The accelerator length is 48 cm including the cavity, thermal gun and the electron window. Dedicated bunching cells are designed to reduce the energy spread. In the high power tests, the accelerator was able to generated the electron beam with RMS energy spread 1.1% (beam energy: 8.1 MeV, peak current: 45 mA). Combining features of compact size and the low energy spread, this X-band accelerator design is valuable for various application.
Design Of An X-band 3MeV Standing-wave Accelerating Structure with Nose-cone Structure Made From Two Halves
Focheng Liu,Huaibi Chen,Jiaru Shi,Chuanxiang Tang,Hao Zha +4 more
- 01 Aug 2021
TL;DR: In this paper, an X-band 3MeV standing-wave accelerator with nose cones made from two halves is presented, whose simulated shunt impedance is 144 MΩ/m.
A compact multiplexer for linear accelerator systems
TL;DR: In this paper , the authors proposed a compact multiplexer for high-power radio-frequency (RF) systems with rapid power distribution demands and provided a potential solution for rapid multiangle irradiation field switching technologies, such as FLASH radiotherapy and stationary computed tomography (CT) technology.