Development of high-average power FEL amplifiers using sheet electron beams and short-period wigglers

D. J. Radack; S. W. Bidwell; T. M. Antonsen; J. H. Booske; Y. Carmel; W. W. Destler; H. P. Freund; V. L. Granatstein; P. E. Latham; B. Levush; W. P. Marable; I. D. Mayergoyz; J. Rodgers; Z. X. Zhang

doi:10.1109/plasma.1990.110809

Development of high-average power FEL amplifiers using sheet electron beams and short-period wigglers

D. J. Radack, S. W. Bidwell, T. M. Antonsen, J. H. Booske, Y. Carmel, W. W. Destler, H. P. Freund, V. L. Granatstein, P. E. Latham, B. Levush, W. P. Marable, I. D. Mayergoyz, J. Rodgers, Z. X. Zhang

Research output: Contribution to conference › Paper › peer-review

Abstract

Summary form only given. A high-average-power (≥1-MW) FEL (free-electron laser) is being developed as an ECRH (electron cyclotron resonance heating) source for RF heating of magnetic fusion plasmas. Designs for millimeter-wave (200-600-GHz) FEL amplifiers using relativistic sheet electron beams (eV_b ≥ 0.5 MeV, I_b ≈ 100 A) and short-period wigglers (l_w ≤ 1 cm) have been developed. These designs call for a large total number of wiggler periods (≥50) as well as tapering to enhance the FEL electronic efficiency. Sheet beam stability and beam interception are two critical parameters for this radiation source concept. The effects of wiggler field errors on beam propagation have been studied using numerical simulation of beam propagation through ideal planar wigglers and wigglers with random errors. One concern was that wiggler errors could lead to a large fraction of beam loss to interception by the waveguide. The issue of beam interception is so critical for the feasibility of the FEL amplifier that an experiment was conducted to investigate sheet beam propagation through a 60-period wiggler (l_w = 1 cm).

Original language	English
Pages	196
Number of pages	1
DOIs	https://doi.org/10.1109/plasma.1990.110809
State	Published - 1 Jan 1990
Externally published	Yes
Event	1990 IEEE International Conference on Plasma Science - Oakland, CA, USA Duration: 21 May 1990 → 23 May 1990

Conference

Conference	1990 IEEE International Conference on Plasma Science
City	Oakland, CA, USA
Period	21/05/90 → 23/05/90

ASJC Scopus subject areas

General Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/plasma.1990.110809

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Radack, D. J., Bidwell, S. W., Antonsen, T. M., Booske, J. H., Carmel, Y., Destler, W. W., Freund, H. P., Granatstein, V. L., Latham, P. E., Levush, B., Marable, W. P., Mayergoyz, I. D., Rodgers, J., & Zhang, Z. X. (1990). Development of high-average power FEL amplifiers using sheet electron beams and short-period wigglers. 196. Paper presented at 1990 IEEE International Conference on Plasma Science, Oakland, CA, USA. https://doi.org/10.1109/plasma.1990.110809

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title = "Development of high-average power FEL amplifiers using sheet electron beams and short-period wigglers",

abstract = "Summary form only given. A high-average-power (≥1-MW) FEL (free-electron laser) is being developed as an ECRH (electron cyclotron resonance heating) source for RF heating of magnetic fusion plasmas. Designs for millimeter-wave (200-600-GHz) FEL amplifiers using relativistic sheet electron beams (eVb ≥ 0.5 MeV, Ib ≈ 100 A) and short-period wigglers (lw ≤ 1 cm) have been developed. These designs call for a large total number of wiggler periods (≥50) as well as tapering to enhance the FEL electronic efficiency. Sheet beam stability and beam interception are two critical parameters for this radiation source concept. The effects of wiggler field errors on beam propagation have been studied using numerical simulation of beam propagation through ideal planar wigglers and wigglers with random errors. One concern was that wiggler errors could lead to a large fraction of beam loss to interception by the waveguide. The issue of beam interception is so critical for the feasibility of the FEL amplifier that an experiment was conducted to investigate sheet beam propagation through a 60-period wiggler (lw = 1 cm).",

author = "Radack, {D. J.} and Bidwell, {S. W.} and Antonsen, {T. M.} and Booske, {J. H.} and Y. Carmel and Destler, {W. W.} and Freund, {H. P.} and Granatstein, {V. L.} and Latham, {P. E.} and B. Levush and Marable, {W. P.} and Mayergoyz, {I. D.} and J. Rodgers and Zhang, {Z. X.}",

year = "1990",

month = jan,

day = "1",

doi = "10.1109/plasma.1990.110809",

language = "English",

pages = "196",

note = "1990 IEEE International Conference on Plasma Science ; Conference date: 21-05-1990 Through 23-05-1990",

}

Radack, DJ, Bidwell, SW, Antonsen, TM, Booske, JH, Carmel, Y, Destler, WW, Freund, HP, Granatstein, VL, Latham, PE, Levush, B, Marable, WP, Mayergoyz, ID, Rodgers, J & Zhang, ZX 1990, 'Development of high-average power FEL amplifiers using sheet electron beams and short-period wigglers', Paper presented at 1990 IEEE International Conference on Plasma Science, Oakland, CA, USA, 21/05/90 - 23/05/90 pp. 196. https://doi.org/10.1109/plasma.1990.110809

TY - CONF

T1 - Development of high-average power FEL amplifiers using sheet electron beams and short-period wigglers

AU - Radack, D. J.

AU - Bidwell, S. W.

AU - Antonsen, T. M.

AU - Booske, J. H.

AU - Carmel, Y.

AU - Destler, W. W.

AU - Freund, H. P.

AU - Granatstein, V. L.

AU - Latham, P. E.

AU - Levush, B.

AU - Marable, W. P.

AU - Mayergoyz, I. D.

AU - Rodgers, J.

AU - Zhang, Z. X.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - Summary form only given. A high-average-power (≥1-MW) FEL (free-electron laser) is being developed as an ECRH (electron cyclotron resonance heating) source for RF heating of magnetic fusion plasmas. Designs for millimeter-wave (200-600-GHz) FEL amplifiers using relativistic sheet electron beams (eVb ≥ 0.5 MeV, Ib ≈ 100 A) and short-period wigglers (lw ≤ 1 cm) have been developed. These designs call for a large total number of wiggler periods (≥50) as well as tapering to enhance the FEL electronic efficiency. Sheet beam stability and beam interception are two critical parameters for this radiation source concept. The effects of wiggler field errors on beam propagation have been studied using numerical simulation of beam propagation through ideal planar wigglers and wigglers with random errors. One concern was that wiggler errors could lead to a large fraction of beam loss to interception by the waveguide. The issue of beam interception is so critical for the feasibility of the FEL amplifier that an experiment was conducted to investigate sheet beam propagation through a 60-period wiggler (lw = 1 cm).

AB - Summary form only given. A high-average-power (≥1-MW) FEL (free-electron laser) is being developed as an ECRH (electron cyclotron resonance heating) source for RF heating of magnetic fusion plasmas. Designs for millimeter-wave (200-600-GHz) FEL amplifiers using relativistic sheet electron beams (eVb ≥ 0.5 MeV, Ib ≈ 100 A) and short-period wigglers (lw ≤ 1 cm) have been developed. These designs call for a large total number of wiggler periods (≥50) as well as tapering to enhance the FEL electronic efficiency. Sheet beam stability and beam interception are two critical parameters for this radiation source concept. The effects of wiggler field errors on beam propagation have been studied using numerical simulation of beam propagation through ideal planar wigglers and wigglers with random errors. One concern was that wiggler errors could lead to a large fraction of beam loss to interception by the waveguide. The issue of beam interception is so critical for the feasibility of the FEL amplifier that an experiment was conducted to investigate sheet beam propagation through a 60-period wiggler (lw = 1 cm).

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DO - 10.1109/plasma.1990.110809

M3 - Paper

AN - SCOPUS:0025587049

SP - 196

T2 - 1990 IEEE International Conference on Plasma Science

Y2 - 21 May 1990 through 23 May 1990

ER -

Development of high-average power FEL amplifiers using sheet electron beams and short-period wigglers

Abstract

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UN SDGs

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