First lasing of a Cherenkov free-electron laser with annular electron beam

J. Wieland; J. Couperus; Petrus J.M. van der Slot; W.J. Witteman

doi:10.1016/S0168-9002(99)00057-1

First lasing of a Cherenkov free-electron laser with annular electron beam

J. Wieland, J. Couperus, Petrus J.M. van der Slot, W.J. Witteman

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

5 Citations (Scopus)

Abstract

A Cherenkov FEL with an annular electron beam has been succesfully operated. During the first lasing experiments output was found for accelerating voltages ranging from 85 to 150 kV and currents from 1 to 10 A. At a particular accelerating voltage lasing was observed for several distinct settings of the magnetic field (0.7–1.6 T). This field is used to compress and guide the electron beam along the dielectric liner. Depending on the magnetic field setting, the output was reproducible or showed large fluctuations within a single laser pulse as well as from pulse to pulse. Due to a misalignment of the cathode the total output power is only of the order of 100 W. From theoretical considerations the spectrum is expected to center around 19 GHz.

Original language	English
Pages (from-to)	17-20
Number of pages	4
Journal	Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment
Volume	1999
Issue number	429
DOIs	https://doi.org/10.1016/S0168-9002(99)00057-1
Publication status	Published - 1999
Event	20th International Free Electron Laser Conference, FEL98 & 5th Annual FEL User Workshop 1998 - Williamsburg, United States Duration: 16 Aug 1998 → 21 Aug 1998 Conference number: 20 https://www.jlab.org/intralab/calendar/archive98/fel98/fel98.html

Keywords

IR-60315
Cherenkov FEL
METIS-128496
Simulations
Waveguide
Dielectric liner

Access to Document

10.1016/S0168-9002(99)00057-1

Cite this

@article{118183cd787346d5a2d0cd591ef58fe2,

title = "First lasing of a Cherenkov free-electron laser with annular electron beam",

abstract = "A Cherenkov FEL with an annular electron beam has been succesfully operated. During the first lasing experiments output was found for accelerating voltages ranging from 85 to 150 kV and currents from 1 to 10 A. At a particular accelerating voltage lasing was observed for several distinct settings of the magnetic field (0.7–1.6 T). This field is used to compress and guide the electron beam along the dielectric liner. Depending on the magnetic field setting, the output was reproducible or showed large fluctuations within a single laser pulse as well as from pulse to pulse. Due to a misalignment of the cathode the total output power is only of the order of 100 W. From theoretical considerations the spectrum is expected to center around 19 GHz.",

keywords = "IR-60315, Cherenkov FEL, METIS-128496, Simulations, Waveguide, Dielectric liner",

author = "J. Wieland and J. Couperus and {van der Slot}, {Petrus J.M.} and W.J. Witteman",

year = "1999",

doi = "10.1016/S0168-9002(99)00057-1",

language = "English",

volume = "1999",

pages = "17--20",

journal = "Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment",

issn = "0168-9002",

publisher = "Elsevier",

number = "429",

note = "20th International Free Electron Laser Conference, FEL98 & 5th Annual FEL User Workshop 1998, FEL ; Conference date: 16-08-1998 Through 21-08-1998",

url = "https://www.jlab.org/intralab/calendar/archive98/fel98/fel98.html",

}

First lasing of a Cherenkov free-electron laser with annular electron beam. / Wieland, J.; Couperus, J.; van der Slot, Petrus J.M. et al.
In: Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment, Vol. 1999, No. 429, 1999, p. 17-20.

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

TY - JOUR

T1 - First lasing of a Cherenkov free-electron laser with annular electron beam

AU - Wieland, J.

AU - Couperus, J.

AU - van der Slot, Petrus J.M.

AU - Witteman, W.J.

N1 - Conference code: 20

PY - 1999

Y1 - 1999

N2 - A Cherenkov FEL with an annular electron beam has been succesfully operated. During the first lasing experiments output was found for accelerating voltages ranging from 85 to 150 kV and currents from 1 to 10 A. At a particular accelerating voltage lasing was observed for several distinct settings of the magnetic field (0.7–1.6 T). This field is used to compress and guide the electron beam along the dielectric liner. Depending on the magnetic field setting, the output was reproducible or showed large fluctuations within a single laser pulse as well as from pulse to pulse. Due to a misalignment of the cathode the total output power is only of the order of 100 W. From theoretical considerations the spectrum is expected to center around 19 GHz.

AB - A Cherenkov FEL with an annular electron beam has been succesfully operated. During the first lasing experiments output was found for accelerating voltages ranging from 85 to 150 kV and currents from 1 to 10 A. At a particular accelerating voltage lasing was observed for several distinct settings of the magnetic field (0.7–1.6 T). This field is used to compress and guide the electron beam along the dielectric liner. Depending on the magnetic field setting, the output was reproducible or showed large fluctuations within a single laser pulse as well as from pulse to pulse. Due to a misalignment of the cathode the total output power is only of the order of 100 W. From theoretical considerations the spectrum is expected to center around 19 GHz.

KW - IR-60315

KW - Cherenkov FEL

KW - METIS-128496

KW - Simulations

KW - Waveguide

KW - Dielectric liner

U2 - 10.1016/S0168-9002(99)00057-1

DO - 10.1016/S0168-9002(99)00057-1

M3 - Article

SN - 0168-9002

VL - 1999

SP - 17

EP - 20

JO - Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment

JF - Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment

IS - 429

T2 - 20th International Free Electron Laser Conference, FEL98 & 5th Annual FEL User Workshop 1998

Y2 - 16 August 1998 through 21 August 1998

ER -