Parameterization technique for the preliminary gun design of the EU 170GHz 1MW conventional cavity gyrotron for ITER

Author

Pagonakis, I. Gr ; Illy, S. ; Silva, M. ; Hogge, J. Ph ; Alberti, S. ; Avramides, K.A. ; Piosczyk, B. ; Albajar, F. ; Bonicelli, T.

Author_Institution

Centre de Rech. en Phys. des Plasmas, Lausanne

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

2

Abstract

A preliminary gun design for the EU 170 GHz, 1 MW conventional cavity gyrotron, for the TE_32,09 mode [1], will be presented. The ASG magnet of the EU 170 GHz, 2 MW coaxial cavity gyrotron for ITER is used for the required magnetic field. A parameterization of the diode gun has been defined. Using the Ariadne++ code [2] the geometry has been optimized with respect to several criteria, such as the small velocity spreads, the acceptable width of the beam radius at the cavity, etc. The neutralization effect has been taken into account using a simple model.

Keywords

Tokamak devices; electron guns; fusion reactor instrumentation; gyrotrons; nuclear engineering computing; ASG magnet; Ariadne++ code; ITER; coaxial cavity gyrotron; electron gun design; frequency 170 GHz; geometry; magnetic field; neutralization effect; power 1 MW; Cathodes; Coaxial components; Diodes; Electron beams; Geometry; Gyrotrons; Magnetic fields; Magnetic resonance; Potential well; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on

Conference_Location

Pasadena, CA

Print_ISBN

978-1-4244-2119-0

Electronic_ISBN

978-1-4244-2120-6

Type

conf

DOI

10.1109/ICIMW.2008.4665518

Filename

4665518