First high power experiments with the Dutch free electron maser

被引：4

作者：

Verhoeven, AGA ^{[1
]}

Bongers, WA ^{[1
]}

Bratman, VL ^{[1
]}

Caplan, M ^{[1
]}

Denisov, GG ^{[1
]}

van Dijk, G ^{[1
]}

van der Geer, CAJ ^{[1
]}

Manintveld, P ^{[1
]}

Poelman, AJ ^{[1
]}

Pluygers, J ^{[1
]}

Shmelyov, MY ^{[1
]}

Smeets, PHM ^{[1
]}

Sterk, AB ^{[1
]}

Urbanus, WH ^{[1
]}

机构：

[1] EURATOM, FOM, Inst Plasmafys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands

来源：

PHYSICS OF PLASMAS | 1998年 / 5卷 / 05期

关键词：

D O I：

10.1063/1.872874

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A free electron maser (FEM) has been built as a mm-wave source for applications on future fusion research devices such as ITER, the international tokamak experimental reactor [M. A. Makowski, F. Elio, and D. Loeser, April 97, Proc. 10th Workshop on ECE and ECRH, EC10, 549-559. World Scientific (1998)]. A unique feature of the Dutch fusion-FEM is the possibility to tune the frequency over the entire range from 130 to 260 GHz at an output power exceeding 1 MW. In the first phase of the project, a so-called inverse setup is used. The electron gun is mounted inside the high-voltage terminal. The entire beam line was tested successfully with extremely low loss current, lower than 0.05%. This included the accelerating structure up to 2 MV level and the transport through the undulator. First generation of mm-waves was achieved in October 1997. With an electron beam current around 8 A and an accelerator voltage of 1.76 IMV the mm-wave pulse starts after 3 mu s and lasts for 3 mu s, reaching a maximum saturated peak power level of more than 500 kW at a frequency of 200 GHz. Output power, start-up time, and frequency correspond well with simulation results. (C) 1998 American Institute of Physics.

引用

页码：2029 / 2036

页数：8

共 14 条

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