Study of radiation build up and mode evolution in the Israeli electrostatic accelerator free-electron laser oscillator

Amir Abramovich

doi:10.1109/27.772286

Study of radiation build up and mode evolution in the Israeli electrostatic accelerator free-electron laser oscillator

Research output: Contribution to journal › Article › peer-review

Abstract

A time-frequency study of oscillation build up in an electrostatic-accelerator free-electron laser (EA-FEL) oscillator is presented. The unique features of an EA-FEL are its capacity to operate in a long pulse mode and enable observation and study of linear and nonlinear processes taking place in the evolution of radiation in the EA-FEL oscillator. The experimental data recorded with the aid of a fast digital sampling oscilloscope are analyzed using fast Fourier transform (FFT) signal-processing techniques to obtain the power spectral density evolution with time. Such an analysis allows one to study the radiation excitation build up from noise to saturation, including the intermediate stages of mode build up and competition until single-mode, steady-state operation is established.

Original language	English
Pages (from-to)	563-567
Number of pages	5
Journal	IEEE Transactions on Plasma Science
Volume	27
Issue number	2
DOIs	https://doi.org/10.1109/27.772286
State	Published - 1999
Externally published	Yes

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title = "Study of radiation build up and mode evolution in the Israeli electrostatic accelerator free-electron laser oscillator",

abstract = "A time-frequency study of oscillation build up in an electrostatic-accelerator free-electron laser (EA-FEL) oscillator is presented. The unique features of an EA-FEL are its capacity to operate in a long pulse mode and enable observation and study of linear and nonlinear processes taking place in the evolution of radiation in the EA-FEL oscillator. The experimental data recorded with the aid of a fast digital sampling oscilloscope are analyzed using fast Fourier transform (FFT) signal-processing techniques to obtain the power spectral density evolution with time. Such an analysis allows one to study the radiation excitation build up from noise to saturation, including the intermediate stages of mode build up and competition until single-mode, steady-state operation is established.",

author = "Amir Abramovich",

note = "Funding Information: Manuscript received August 1, 1998; revised January 4, 1999. This work was supported by the Israeli Ministry of Infrastructure, the Israeli Ministry of Science, the Israeli Science Foundation, and the Meyer Foundation.",

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PY - 1999

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N2 - A time-frequency study of oscillation build up in an electrostatic-accelerator free-electron laser (EA-FEL) oscillator is presented. The unique features of an EA-FEL are its capacity to operate in a long pulse mode and enable observation and study of linear and nonlinear processes taking place in the evolution of radiation in the EA-FEL oscillator. The experimental data recorded with the aid of a fast digital sampling oscilloscope are analyzed using fast Fourier transform (FFT) signal-processing techniques to obtain the power spectral density evolution with time. Such an analysis allows one to study the radiation excitation build up from noise to saturation, including the intermediate stages of mode build up and competition until single-mode, steady-state operation is established.

AB - A time-frequency study of oscillation build up in an electrostatic-accelerator free-electron laser (EA-FEL) oscillator is presented. The unique features of an EA-FEL are its capacity to operate in a long pulse mode and enable observation and study of linear and nonlinear processes taking place in the evolution of radiation in the EA-FEL oscillator. The experimental data recorded with the aid of a fast digital sampling oscilloscope are analyzed using fast Fourier transform (FFT) signal-processing techniques to obtain the power spectral density evolution with time. Such an analysis allows one to study the radiation excitation build up from noise to saturation, including the intermediate stages of mode build up and competition until single-mode, steady-state operation is established.

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JO - IEEE Transactions on Plasma Science

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Study of radiation build up and mode evolution in the Israeli electrostatic accelerator free-electron laser oscillator

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