Robustness of the E×B MDC prototype design for gyrotrons

IF 1.9 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Fusion Engineering and Design Pub Date : 2025-03-29 DOI:10.1016/j.fusengdes.2025.114979

Benjamin Ell, Lukas Feuerstein, Gerd Gantenbein, Stefan Illy, Tobias Ruess, Tomasz Rzesnicki, Sebastian Stanculovic, Manfred Thumm, Jörg Weggen, Chuanren Wu, John Jelonnek

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引用次数: 0

Abstract

The Short-Pulse (SP)

E

\times

B

Multistage Depressed Collector (MDC) prototype developed and built at Karlsruhe Institute of Technology (KIT) is theoretically investigated for its robustness to manufacturing tolerances and non-optimized gyrotron operating scenarios. The tolerance analysis is done based on a parametric definition of the collector electrodes for the optimized gyrotron operation with the KIT 2 MW 170 GHz coaxial-cavity gyrotron. The six most dominant geometrical parameters are considered. The prototype design is then adapted to 5 different gyrotron configurations and operation modes, which include the Wendelstein 7-X (W7-X) Upgrade SP gyrotron for 140 GHz and 105 GHz operation, as well as the coaxial-cavity gyrotron in multi-frequency operation at 136 GHz and 204 GHz (in addition to the nominal operation at 170 GHz) and operation at the second harmonic at 170 GHz. The necessary modifications to the mechanical adaption, the magnetic configuration and electrode potentials are highlighted for promising MDC operation in all cases.

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来源期刊

Fusion Engineering and Design 工程技术-核科学技术

CiteScore

3.50

自引率

23.50%

发文量

275

审稿时长

3.8 months

期刊介绍： The journal accepts papers about experiments (both plasma and technology), theory, models, methods, and designs in areas relating to technology, engineering, and applied science aspects of magnetic and inertial fusion energy. Specific areas of interest include: MFE and IFE design studies for experiments and reactors; fusion nuclear technologies and materials, including blankets and shields; analysis of reactor plasmas; plasma heating, fuelling, and vacuum systems; drivers, targets, and special technologies for IFE, controls and diagnostics; fuel cycle analysis and tritium reprocessing and handling; operations and remote maintenance of reactors; safety, decommissioning, and waste management; economic and environmental analysis of components and systems.