Coherent microwave generation from a pseudospark cathode Cherenkov maser

H. Yin; W. He; G. R. M. Robb; A. D. R. Phelps; K. Ronald; A. W. Cross

doi:10.1103/PhysRevSTAB.2.020701

Coherent microwave generation from a pseudospark cathode Cherenkov maser

H. Yin, W. He, G. R. M. Robb, A. D. R. Phelps, K. Ronald, A. W. Cross

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Abstract

Experimental results are presented from the first free electron maser experiment to use a pseudospark electron source. A pulsed, 70–80 kV, 10 A electron beam of normalized brightness 10^11A(m*rad)^(−2) and current density 1kAcm^(−2) from a pseudospark electron cathode was used to produce coherent microwave radiation via a Cherenkov interaction between the electron beam and the TM01 mode of a 60-cm-long alumina-lined waveguide. A gain of 29 dB was measured with an output power of 2 kW in the frequency range 25.5–28.6 GHz. The experimental results were found to be consistent with numerical simulations of Cherenkov amplification.

Original language	English
Article number	020701
Number of pages	5
Journal	Physical Review Special Topics: Accelerators and Beams
Volume	2
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevSTAB.2.020701
Publication status	Published - 17 Feb 1999

Keywords

maser
Cherenkov
pseudospark

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10.1103/PhysRevSTAB.2.020701Licence: CC BY 3.0

Yin-etal-PRST-AB-1999-Coherent-microwave-generation-from-a-pseudospark-cathode-Cherenkov-maserFinal published version, 142 KBLicence: CC BY 3.0

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title = "Coherent microwave generation from a pseudospark cathode Cherenkov maser",

abstract = "Experimental results are presented from the first free electron maser experiment to use a pseudospark electron source. A pulsed, 70–80 kV, 10 A electron beam of normalized brightness 10\textasciicircum{}11A(m*rad)\textasciicircum{}(−2) and current density 1kAcm\textasciicircum{}(−2) from a pseudospark electron cathode was used to produce coherent microwave radiation via a Cherenkov interaction between the electron beam and the TM01 mode of a 60-cm-long alumina-lined waveguide. A gain of 29 dB was measured with an output power of 2 kW in the frequency range 25.5–28.6 GHz. The experimental results were found to be consistent with numerical simulations of Cherenkov amplification.",

keywords = "maser, Cherenkov, pseudospark",

author = "H. Yin and W. He and Robb, \{G. R. M.\} and Phelps, \{A. D. R.\} and K. Ronald and Cross, \{A. W.\}",

note = "This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article{\textquoteright}s title, journal citation, and DOI.",

year = "1999",

month = feb,

day = "17",

doi = "10.1103/PhysRevSTAB.2.020701",

language = "English",

volume = "2",

journal = "Physical Review Special Topics: Accelerators and Beams",

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T1 - Coherent microwave generation from a pseudospark cathode Cherenkov maser

AU - Yin, H.

AU - He, W.

AU - Robb, G. R. M.

AU - Phelps, A. D. R.

AU - Ronald, K.

AU - Cross, A. W.

N1 - This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

PY - 1999/2/17

Y1 - 1999/2/17

N2 - Experimental results are presented from the first free electron maser experiment to use a pseudospark electron source. A pulsed, 70–80 kV, 10 A electron beam of normalized brightness 10^11A(m*rad)^(−2) and current density 1kAcm^(−2) from a pseudospark electron cathode was used to produce coherent microwave radiation via a Cherenkov interaction between the electron beam and the TM01 mode of a 60-cm-long alumina-lined waveguide. A gain of 29 dB was measured with an output power of 2 kW in the frequency range 25.5–28.6 GHz. The experimental results were found to be consistent with numerical simulations of Cherenkov amplification.

AB - Experimental results are presented from the first free electron maser experiment to use a pseudospark electron source. A pulsed, 70–80 kV, 10 A electron beam of normalized brightness 10^11A(m*rad)^(−2) and current density 1kAcm^(−2) from a pseudospark electron cathode was used to produce coherent microwave radiation via a Cherenkov interaction between the electron beam and the TM01 mode of a 60-cm-long alumina-lined waveguide. A gain of 29 dB was measured with an output power of 2 kW in the frequency range 25.5–28.6 GHz. The experimental results were found to be consistent with numerical simulations of Cherenkov amplification.

KW - maser

KW - Cherenkov

KW - pseudospark

UR - https://journals.aps.org/prab/

U2 - 10.1103/PhysRevSTAB.2.020701

DO - 10.1103/PhysRevSTAB.2.020701

M3 - Article

SN - 2469-9888

VL - 2

JO - Physical Review Special Topics: Accelerators and Beams

JF - Physical Review Special Topics: Accelerators and Beams

IS - 2

M1 - 020701

ER -

Coherent microwave generation from a pseudospark cathode Cherenkov maser

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