Development of a submillimeter-wave free electron laser: Beam propagation results and linear-gain amplifier status

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

Development of a submillimeter-wave free electron laser: Beam propagation results and linear-gain amplifier status

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

Department of Electrical & Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Progress on the development of a submillimeter-wave free electron laser (FEL) amplifier using a mildly relativistic (V_b ≤ 1 MeV) sheet electron beam (I_b approximately 10 A) and short-period wiggler (l_w approximately 1 cm) is reported. The specific program goal is the development of an FEL amplifier as an ECRH source (200-600 GHz) for magnetically confined fusion devices. Toward this end, a three-stage effort is reported: (1) experimental results on sheet beam propagation through a l_w = 0.96 cm, B_w = 3.4 kG, Nl_w = 54 cm pulsed wiggler magnet; (2) status of an FEL amplifier at 98 GHz which will demonstrate linear gain using the above-mentioned magnet; and (3) designs for a proof-of-principle FEL amplifier at 98 GHz, demonstrating gain in the strong-pump regime, saturation, and high intrinsic efficiency through wiggler tapering. Supporting these efforts is a numerical code for modeling sheet beam transport through the wiggler as well as a code for calculation of gain, efficiency, etc., including 3-D and nonlinear effects.

Original language	English
Title of host publication	91 IEEE Int Conf Plasma Sci
Publisher	Institute of Electrical and Electronics Engineers
Pages	176
Number of pages	1
ISBN (Print)	0780301471
State	Published - 1 Dec 1991
Event	1991 IEEE International Conference on Plasma Science - Williamsburg, VA, USA Duration: 3 Jun 1991 → 5 Jun 1991

Publication series

Name	91 IEEE Int Conf Plasma Sci

Conference

Conference	1991 IEEE International Conference on Plasma Science
City	Williamsburg, VA, USA
Period	3/06/91 → 5/06/91

ASJC Scopus subject areas

General Engineering

UN SDGs

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

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Bidwell, S. W., Radack, D. J., Zhang, Z. X., Antonsen, T. M., Carmel, Y., Destler, W. W., Freund, H. P., Granatstein, V. L., Latham, P. E., Levush, B., & Mayergoyz, I. D. (1991). Development of a submillimeter-wave free electron laser: Beam propagation results and linear-gain amplifier status. In 91 IEEE Int Conf Plasma Sci (pp. 176). (91 IEEE Int Conf Plasma Sci). Institute of Electrical and Electronics Engineers.

@inproceedings{d682865102484097b5893037c9a021e8,

title = "Development of a submillimeter-wave free electron laser: Beam propagation results and linear-gain amplifier status",

abstract = "Progress on the development of a submillimeter-wave free electron laser (FEL) amplifier using a mildly relativistic (Vb ≤ 1 MeV) sheet electron beam (Ib approximately 10 A) and short-period wiggler (lw approximately 1 cm) is reported. The specific program goal is the development of an FEL amplifier as an ECRH source (200-600 GHz) for magnetically confined fusion devices. Toward this end, a three-stage effort is reported: (1) experimental results on sheet beam propagation through a lw = 0.96 cm, Bw = 3.4 kG, Nlw = 54 cm pulsed wiggler magnet; (2) status of an FEL amplifier at 98 GHz which will demonstrate linear gain using the above-mentioned magnet; and (3) designs for a proof-of-principle FEL amplifier at 98 GHz, demonstrating gain in the strong-pump regime, saturation, and high intrinsic efficiency through wiggler tapering. Supporting these efforts is a numerical code for modeling sheet beam transport through the wiggler as well as a code for calculation of gain, efficiency, etc., including 3-D and nonlinear effects.",

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

year = "1991",

month = dec,

day = "1",

language = "English",

isbn = "0780301471",

series = "91 IEEE Int Conf Plasma Sci",

publisher = "Institute of Electrical and Electronics Engineers",

pages = "176",

booktitle = "91 IEEE Int Conf Plasma Sci",

address = "United States",

note = "1991 IEEE International Conference on Plasma Science ; Conference date: 03-06-1991 Through 05-06-1991",

}

Bidwell, SW, Radack, DJ, Zhang, ZX, Antonsen, TM, Carmel, Y, Destler, WW, Freund, HP, Granatstein, VL, Latham, PE, Levush, B & Mayergoyz, ID 1991, Development of a submillimeter-wave free electron laser: Beam propagation results and linear-gain amplifier status. in 91 IEEE Int Conf Plasma Sci. 91 IEEE Int Conf Plasma Sci, Institute of Electrical and Electronics Engineers, pp. 176, 1991 IEEE International Conference on Plasma Science, Williamsburg, VA, USA, 3/06/91.

Development of a submillimeter-wave free electron laser: Beam propagation results and linear-gain amplifier status. / Bidwell, S. W.; Radack, D. J.; Zhang, Z. X. et al.
91 IEEE Int Conf Plasma Sci. Institute of Electrical and Electronics Engineers, 1991. p. 176 (91 IEEE Int Conf Plasma Sci).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Antonsen, T. M.

AU - Carmel, Y.

AU - Destler, W. W.

AU - Freund, H. P.

AU - Granatstein, V. L.

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AU - Levush, B.

AU - Mayergoyz, I. D.

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N2 - Progress on the development of a submillimeter-wave free electron laser (FEL) amplifier using a mildly relativistic (Vb ≤ 1 MeV) sheet electron beam (Ib approximately 10 A) and short-period wiggler (lw approximately 1 cm) is reported. The specific program goal is the development of an FEL amplifier as an ECRH source (200-600 GHz) for magnetically confined fusion devices. Toward this end, a three-stage effort is reported: (1) experimental results on sheet beam propagation through a lw = 0.96 cm, Bw = 3.4 kG, Nlw = 54 cm pulsed wiggler magnet; (2) status of an FEL amplifier at 98 GHz which will demonstrate linear gain using the above-mentioned magnet; and (3) designs for a proof-of-principle FEL amplifier at 98 GHz, demonstrating gain in the strong-pump regime, saturation, and high intrinsic efficiency through wiggler tapering. Supporting these efforts is a numerical code for modeling sheet beam transport through the wiggler as well as a code for calculation of gain, efficiency, etc., including 3-D and nonlinear effects.

AB - Progress on the development of a submillimeter-wave free electron laser (FEL) amplifier using a mildly relativistic (Vb ≤ 1 MeV) sheet electron beam (Ib approximately 10 A) and short-period wiggler (lw approximately 1 cm) is reported. The specific program goal is the development of an FEL amplifier as an ECRH source (200-600 GHz) for magnetically confined fusion devices. Toward this end, a three-stage effort is reported: (1) experimental results on sheet beam propagation through a lw = 0.96 cm, Bw = 3.4 kG, Nlw = 54 cm pulsed wiggler magnet; (2) status of an FEL amplifier at 98 GHz which will demonstrate linear gain using the above-mentioned magnet; and (3) designs for a proof-of-principle FEL amplifier at 98 GHz, demonstrating gain in the strong-pump regime, saturation, and high intrinsic efficiency through wiggler tapering. Supporting these efforts is a numerical code for modeling sheet beam transport through the wiggler as well as a code for calculation of gain, efficiency, etc., including 3-D and nonlinear effects.

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M3 - Conference contribution

AN - SCOPUS:0026376386

SN - 0780301471

T3 - 91 IEEE Int Conf Plasma Sci

SP - 176

BT - 91 IEEE Int Conf Plasma Sci

PB - Institute of Electrical and Electronics Engineers

Y2 - 3 June 1991 through 5 June 1991

ER -

Development of a submillimeter-wave free electron laser: Beam propagation results and linear-gain amplifier status

Abstract

Publication series

Conference

ASJC Scopus subject areas

UN SDGs

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