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Study of an eighth-harmonic large-orbit gyrotron in the terahertz band

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Study of an eighth-harmonic large-orbit gyrotron in the terahertz band. / Li, Xiang; Lang, Jiandong; Alfadhl, Yasir et al.
In: IEEE Transactions on Plasma Science, Vol. 43, No. 2, 02.2015, p. 506-514.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Li, X, Lang, J, Alfadhl, Y & Chen, X 2015, 'Study of an eighth-harmonic large-orbit gyrotron in the terahertz band', IEEE Transactions on Plasma Science, vol. 43, no. 2, pp. 506-514. https://doi.org/10.1109/TPS.2014.2384200

APA

Li, X., Lang, J., Alfadhl, Y., & Chen, X. (2015). Study of an eighth-harmonic large-orbit gyrotron in the terahertz band. IEEE Transactions on Plasma Science, 43(2), 506-514. https://doi.org/10.1109/TPS.2014.2384200

Vancouver

Li X, Lang J, Alfadhl Y, Chen X. Study of an eighth-harmonic large-orbit gyrotron in the terahertz band. IEEE Transactions on Plasma Science. 2015 Feb;43(2):506-514. Epub 2015 Jan 7. doi: 10.1109/TPS.2014.2384200

Author

Li, Xiang ; Lang, Jiandong ; Alfadhl, Yasir et al. / Study of an eighth-harmonic large-orbit gyrotron in the terahertz band. In: IEEE Transactions on Plasma Science. 2015 ; Vol. 43, No. 2. pp. 506-514.

Bibtex

@article{3ad39ad6c2324e9aa2bbe13aeb2cfd92,
title = "Study of an eighth-harmonic large-orbit gyrotron in the terahertz band",
abstract = "A 0.42-THz eighth-harmonic large-orbit gyrotron (LOG) operating with TE8,1,1 mode has been designed and studied. The LOG design is characterized by the requirement of low external magnetic field and short cavity length to limit the ohmic loss. The cold cavity analysis is presented and followed by the hot cavity simulation with the 3-D particle-in-cell code. It is shown in the initial hot test that by proper choice of the electron beam source, the eighth harmonic of the electron cyclotron resonance can be selectively excited at 0.42 THz with an output power of 3.8 kW, which requires an external magnetic field as low as 2.8 T. Based on the model, the starting oscillation process of TE8,1,1 mode at the eighth harmonic and the dynamic of beam-wave interaction are investigated. Upon verification of the design and modeling, a number of parameter variation studies are conducted to draw broader conclusions about the beam-wave interaction behavior in a high-harmonic LOG. The design procedure and the conclusion of this paper can be generalized and applied to other LOGs.",
keywords = "Beam-wave interaction, harmonic resonance, large-orbit gyrotrons (LOGs), ohmic loss, terahertz source, DYNAMIC NUCLEAR-POLARIZATION, POWER MICROWAVE GENERATION, HARMONIC GYROTRON, FUNDAMENTAL MODE, MASER, OSCILLATOR, OPERATION, DEVICES, FIELD, BEAM",
author = "Xiang Li and Jiandong Lang and Yasir Alfadhl and Xiaodong Chen",
year = "2015",
month = feb,
doi = "10.1109/TPS.2014.2384200",
language = "English",
volume = "43",
pages = "506--514",
journal = "IEEE Transactions on Plasma Science",
issn = "0093-3813",
publisher = "IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC",
number = "2",

}

RIS

TY - JOUR

T1 - Study of an eighth-harmonic large-orbit gyrotron in the terahertz band

AU - Li, Xiang

AU - Lang, Jiandong

AU - Alfadhl, Yasir

AU - Chen, Xiaodong

PY - 2015/2

Y1 - 2015/2

N2 - A 0.42-THz eighth-harmonic large-orbit gyrotron (LOG) operating with TE8,1,1 mode has been designed and studied. The LOG design is characterized by the requirement of low external magnetic field and short cavity length to limit the ohmic loss. The cold cavity analysis is presented and followed by the hot cavity simulation with the 3-D particle-in-cell code. It is shown in the initial hot test that by proper choice of the electron beam source, the eighth harmonic of the electron cyclotron resonance can be selectively excited at 0.42 THz with an output power of 3.8 kW, which requires an external magnetic field as low as 2.8 T. Based on the model, the starting oscillation process of TE8,1,1 mode at the eighth harmonic and the dynamic of beam-wave interaction are investigated. Upon verification of the design and modeling, a number of parameter variation studies are conducted to draw broader conclusions about the beam-wave interaction behavior in a high-harmonic LOG. The design procedure and the conclusion of this paper can be generalized and applied to other LOGs.

AB - A 0.42-THz eighth-harmonic large-orbit gyrotron (LOG) operating with TE8,1,1 mode has been designed and studied. The LOG design is characterized by the requirement of low external magnetic field and short cavity length to limit the ohmic loss. The cold cavity analysis is presented and followed by the hot cavity simulation with the 3-D particle-in-cell code. It is shown in the initial hot test that by proper choice of the electron beam source, the eighth harmonic of the electron cyclotron resonance can be selectively excited at 0.42 THz with an output power of 3.8 kW, which requires an external magnetic field as low as 2.8 T. Based on the model, the starting oscillation process of TE8,1,1 mode at the eighth harmonic and the dynamic of beam-wave interaction are investigated. Upon verification of the design and modeling, a number of parameter variation studies are conducted to draw broader conclusions about the beam-wave interaction behavior in a high-harmonic LOG. The design procedure and the conclusion of this paper can be generalized and applied to other LOGs.

KW - Beam-wave interaction

KW - harmonic resonance

KW - large-orbit gyrotrons (LOGs)

KW - ohmic loss

KW - terahertz source

KW - DYNAMIC NUCLEAR-POLARIZATION

KW - POWER MICROWAVE GENERATION

KW - HARMONIC GYROTRON

KW - FUNDAMENTAL MODE

KW - MASER

KW - OSCILLATOR

KW - OPERATION

KW - DEVICES

KW - FIELD

KW - BEAM

U2 - 10.1109/TPS.2014.2384200

DO - 10.1109/TPS.2014.2384200

M3 - Journal article

VL - 43

SP - 506

EP - 514

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

SN - 0093-3813

IS - 2

ER -