Development of linear accelerator microwave system for terahertz near-field high-throughput material physical property testing system

Shao Zhuoxia; Zhang Tong; Dong Ziqiang; Zhou Zeran; He Zhigang; Wang Lin; Lu Yalin

doi:10.11884/HPLPB202537.240168

Volume 37 Issue 1

Dec. 2025

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2025 > 37(1): 014004

Shao Zhuoxia, Zhang Tong, Dong Ziqiang, et al. Development of linear accelerator microwave system for terahertz near-field high-throughput material physical property testing system[J]. High Power Laser and Particle Beams, 2025, 37: 014004. doi: 10.11884/HPLPB202537.240168

Citation:

Shao Zhuoxia, Zhang Tong, Dong Ziqiang, et al. Development of linear accelerator microwave system for terahertz near-field high-throughput material physical property testing system[J]. High Power Laser and Particle Beams, 2025, 37: 014004. doi: 10.11884/HPLPB202537.240168

Citation:

Shao Zhuoxia, Zhang Tong, Dong Ziqiang, et al. Development of linear accelerator microwave system for terahertz near-field high-throughput material physical property testing system[J]. High Power Laser and Particle Beams, 2025, 37: 014004. doi: 10.11884/HPLPB202537.240168

PDF( 26941 KB)

Development of linear accelerator microwave system for terahertz near-field high-throughput material physical property testing system

doi: 10.11884/HPLPB202537.240168

Shao Zhuoxia^{1, 2
,},
Zhang Tong^{1, 2},
Dong Ziqiang^{1, 2
,
,},
Zhou Zeran³,
He Zhigang³,
Wang Lin^{1, 3},
Lu Yalin^{1, 2}

1.
Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China, Hefei 230029, China
2.
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
3.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

Received Date: 2024-05-15
Accepted Date: 2024-11-29
Rev Recd Date: 2024-11-29

Available Online: 2024-12-12

Publish Date: 2025-12-13

Abstract

Abstract

The terahertz near-field high-throughput material physical property testing system (NFTHZ) integrates a wavelength-tunable terahertz free electron laser (THz-FEL). The instrument uses a linear accelerator with tunable electron energy of 10-18 MeV as the injector. A pre-bunched electron beam can be formed by adjusting the longitudinal/temporal structure of the driving laser. By matching the relationship between the bunching factor, energy of the electron beam at the undulator entrance and the K value of undulator, a terahertz free electron laser with megawatts peak power and an adjustable center wavelength of 0.5-5.0 THz can be achieved. The microwave system provides high-power microwave electric field, accelerating structure and microwave amplitude and phase control system to accelerate the electron beam to the target energy. This article will introduce the development of the microwave system of the NFTHZ facility and the construction progress of the electron linear accelerator.
- free electron laser,
- terahertz,
- pre-bunched electron beam,
- linear accelerator,
- microwave system

FullText(HTML)

References(17)

References

[1]	Shaltout A M, Shalaev V M, Brongersma M L. Spatiotemporal light control with active metasurfaces[J]. Science, 2019, 364: eaat3100. doi: 10.1126/science.aat3100
[2]	Kozina M, Fechner M, Marsik P, et al. Terahertz-driven phonon upconversion in SrTiO₃[J]. Nature Physics, 2019, 15(4): 387-392. doi: 10.1038/s41567-018-0408-1
[3]	Kampfrath T, Sell A, Klatt G, et al. Coherent terahertz control of antiferromagnetic spin waves[J]. Nature Photonics, 2011, 5(1): 31-34. doi: 10.1038/nphoton.2010.259
[4]	Hafez H A, Chai X, Ibrahim A, et al. Intense terahertz radiation and their applications[J]. Journal of Optics, 2016, 18: 093004. doi: 10.1088/2040-8978/18/9/093004
[5]	Sajadi M, Wolf M, Kampfrath T. Transient birefringence of liquids induced by terahertz electric-field torque on permanent molecular dipoles[J]. Nature Communications, 2017, 8: 14963. doi: 10.1038/ncomms14963
[6]	Li Heting, Lu Yalin, He Zhigang, et al. Generation of intense narrow-band tunable terahertz radiation from highly bunched electron pulse train[J]. Journal of Infrared, Millimeter, and Terahertz Waves, 2016, 37(7): 649-657. doi: 10.1007/s10762-016-0258-9
[7]	Liang Yifan, Liu Zhuoyuan, Tian Qili, et al. Widely tunable electron bunch trains for the generation of high-power narrowband 1–10 THz radiation[J]. Nature Photonics, 2023, 17(3): 259-263. doi: 10.1038/s41566-022-01131-7
[8]	Shen Yuzhen, Yang Xi, Carr G L, et al. Tunable few-cycle and multicycle coherent terahertz radiation from relativistic electrons[J]. Physical Review Letters, 2011, 107: 204801. doi: 10.1103/PhysRevLett.107.204801
[9]	Huang Ruixuan, Li Weiwei, Zhao Zhouyu, et al. Design of a pre-bunched THz free electron laser[J]. Particles, 2018, 1(1): 267-278. doi: 10.3390/particles1010021
[10]	Angal-Kalinin D, Bainbridge A, Brynes A D, et al. Design, specifications, and first beam measurements of the compact linear accelerator for research and applications front end[J]. Physical Review Accelerators and Beams, 2020, 23: 044801. doi: 10.1103/PhysRevAccelBeams.23.044801
[11]	Fukuda S, Michizono S, Nakao K, et al. Design and evaluation of a compact 50 MW rf source of the PF linac for the KEKB project[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1996, 368(3): 561-571.
[12]	Mohsenzade S, Zarghany M, Aghaei M, et al. A high-voltage pulse generator with continuously variable pulsewidth based on a modified PFN[J]. IEEE Transactions on Plasma Science, 2017, 45(5): 849-858. doi: 10.1109/TPS.2017.2683800
[13]	Chang Chao, Guo Letian, Tantawi S G, et al. A new compact high-power microwave phase shifter[J]. IEEE Transactions on Microwave Theory and Techniques, 2015, 63(6): 1875-1882. doi: 10.1109/TMTT.2015.2423281
[14]	Zheng Lianmin, Du Yingchao, Zhang Zhe, et al. Development of S-band photocathode RF guns at Tsinghua University[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2016, 834: 98-107.
[15]	Dowell D H, King F K, Kirby R E, et al. In situ cleaning of metal cathodes using a hydrogen ion beam[J]. Physical Review Special Topics-Accelerators and Beams, 2006, 9: 063502. doi: 10.1103/PhysRevSTAB.9.063502
[16]	谢春杰, 朱文超, 冯光耀, 等. S波段直线加速器数字低电平系统研制[J]. 原子能科学技术, 2023, 57(6): 1271-1280 Xie Chunjie, Zhu Wenchao, Feng Guangyao, et al. Development of digital low-level RF system of S-band linac[J]. Atomic Energy Science and Technology, 2023, 57(6): 1271-1280
[17]	朱文超, 魏征宇, 谢春杰, 等. NFTHz加速器束流横向截面尺寸测量系统研制[J]. 强激光与粒子束, 2024, 36:034004 doi: 10.11884/HPLPB202436.230361 Zhu Wenchao, Wei Zhengyu, Xie Chunjie, et al. Development of the NFTHz accelerator beam profile measurement system[J]. High Power Laser and Particle Beams, 2024, 36: 034004 doi: 10.11884/HPLPB202436.230361