TY - JOUR
T1 - Experimental investigation of mode build-up and mode competition process in a prebunched free-electron maser oscillator
AU - Abramovich, A.
AU - Pinhasi, Y.
AU - Arbel, M.
AU - Gilutin, L.
AU - Kleinman, H.
AU - Eichenbaum, A.
AU - Yakover, Y. M.
AU - Gover, A.
PY - 1998/4/21
Y1 - 1998/4/21
N2 - A unique experimental set up at Tel-Aviv University (TAU) enables the study, observation and quantitative measurements of the mode competition process in a Free-Electron Maser (FEM) oscillator. The experimental results provide data on the mode build-up from noise level to steady-state saturation and on mode competition. The experimental results are recorded with the aid of a fast digital oscilloscope and are analyzed to obtain the Fourier components by use of a computer program, which we developed. The Fourier analysis shows clearly the build-up and competition of the longitudinal modes (eigenfrequencies) excited in the oscillator. We studied mode competition for two cases (1) free-running oscillator (no beam prebunching) (2) oscillator with prebunching of the e-beam. We also compared the experimental results with the results of the multi frequency simulation code MALT1D3, and found good agreement.
AB - A unique experimental set up at Tel-Aviv University (TAU) enables the study, observation and quantitative measurements of the mode competition process in a Free-Electron Maser (FEM) oscillator. The experimental results provide data on the mode build-up from noise level to steady-state saturation and on mode competition. The experimental results are recorded with the aid of a fast digital oscilloscope and are analyzed to obtain the Fourier components by use of a computer program, which we developed. The Fourier analysis shows clearly the build-up and competition of the longitudinal modes (eigenfrequencies) excited in the oscillator. We studied mode competition for two cases (1) free-running oscillator (no beam prebunching) (2) oscillator with prebunching of the e-beam. We also compared the experimental results with the results of the multi frequency simulation code MALT1D3, and found good agreement.
UR - http://www.scopus.com/inward/record.url?scp=0032047672&partnerID=8YFLogxK
U2 - 10.1016/S0168-9002(97)01374-0
DO - 10.1016/S0168-9002(97)01374-0
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AN - SCOPUS:0032047672
SN - 0168-9002
VL - 407
SP - 87
EP - 94
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1-3
ER -