Waveguide-Mode Terahertz Free Electron Lasers Driven by Magnetron-Based Microtrons

被引：5

作者：

Jeong, Young Uk ^{[1
,2
]}

Miginsky, Sergey ^{[1
,3
]}

Gudkov, Boris ^{[1
]}

Lee, Kitae ^{[1
,2
]}

Mun, Jungho ^{[1
,4
]}

Shim, Gyu Il ^{[1
]}

Bae, Sangyoon ^{[1
,4
]}

Kim, Hyun Woo ^{[1
,2
]}

Jang, Kyu-Ha ^{[1
,2
]}

Park, Sunjeong ^{[1
,5
]}

Park, Seong Hee ^{[1
,2
]}

Vinokurov, Nikolay ^{[1
,3
]}

机构：

[1] Korea Atom Energy Res Inst, Daejeon, South Korea

[2] Univ Sci & Technol, Dept Accelerator & Nucl Fus Phys Engn, Daejeon, South Korea

[3] SB RAS, Budker Inst Nucl Phys, Novosibirsk, Russia

[4] Chungnam Natl Univ, Dept Phys, Daejeon, South Korea

[5] Kyungbook Natl Univ, Dept Phys, Daegu, South Korea

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2016年 / 63卷 / 02期

关键词：

Electromagnetic radiation; electron beams; free electron lasers; submillimeter wave propagation; submillimeter wave technology; undulators; FIR FEL DRIVEN; RADIATION; EMISSION;

D O I：

10.1109/TNS.2015.2476819

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have developed small-sized terahertz free-electron lasers by using low-cost and compact microtrons combining with magnetrons as high-power RF sources. We could stabilize the bunch repetition rate by optimizing a modulator for the magnetron and by coupling the magnetron with an accelerating cavity in the microtron. By developing high-performance undulators and low-loss waveguide-mode resonators having small cross-sectional areas, we could strengthen the interaction between the electron beam and the THz wave inside the FEL resonators to achieve lasing even with low-current electron beams from the microtron. We used a parallel-plate waveguide in a planar electromagnet undulator for our first THz FEL. We try to reduce the size of the FEL resonator by combining a dielectric-coated circular waveguide and a variable-period helical undulator to realize a table-top THz FEL for applying it to the security inspection on airports.

引用

页码：898 / 905

页数：8

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