Temporal dynamics of Fusion-FEM oscillations: comparison of experiment andsimulations

Authors
Savilov, AV Bratman, VL Denisov, GG Bongers, WA van der Geer, CAJ Manintveld, P Verhoeven, AGA Urbanus, WH
Citation
Av. Savilov et al., Temporal dynamics of Fusion-FEM oscillations: comparison of experiment andsimulations, NUCL INST A, 429(1-3), 1999, pp. 46-51
Citations number
12
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
429
Issue
1-3
Year of publication
1999
Pages
46 - 51
Database
ISI
SICI code
0168-9002(19990611)429:1-3<46:TDOFOC>2.0.ZU;2-G
Abstract
At the first stage of the Fusion-FEM experiment, a high-power electrostatic free-electron laser operating in the mm-wave regime was tested without the energy recovery system. In this situation, a slow temporal drop of the acc eleration voltage complicated significantly the dynamics of the FEM operati on. In this paper, experimental results are compared to simulations. It is demonstrated that the decrease of the frequency of the output radiation, ca used by the voltage drop, has a stepped character: the value of this step i s as large as the width of the amplification band. (C) 1999 Elsevier Scienc e B.V. All rights reserved.