Present status of Budker INP 7 GHz pulsed magnicon

Kozyrev, E. V.; Nezhevenko, O.A.; Nikiforov, A. A.; Ostreiko, G. N.; Shchelkunoff, S. V.; Serdobintsev, G. V.; Tarnetsky, V. V.; Yakovlev, V.P.; Zapryagaev, I.A.

doi:10.1063/1.59010

Cited by 12 publications

(3 citation statements)

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“…The magnicon tube developed for this application is a frequency doubler, or second harmonic amplifier, operating at a frequency of 7 GHz [5,6]. This magnicon has demonstrated experimentally an output power of 55 MW, an efficiency of 56%, and a gain of ~70 dB in a 1 µsec pulses, in very good agreement with simulation results [7,8]. Another frequency-doubling magnicon amplifier at the NLC frequency of 11.424 GHz has been designed and built in a collaboration between Omega-P, Inc and Naval Research Laboratory (NRL).…”

Section: B Technical Approachsupporting

confidence: 67%

120 MW, 800 MHz Magnicon for a Future Muon Collider

Hirshfield¹

2005

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Section: B Technical Approachsupporting

confidence: 67%

120 MW, 800 MHz Magnicon for a Future Muon Collider

Hirshfield¹

2005

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“…A second magnicon is a frequency doubler (or 2 nd harmonic amplifier), operating at a frequency of 7 GHz [10,11]. This tube has demonstrated experimentally an output power of 55 MW, an efficiency of 56%, and a gain of ~70 dB in 1 μsec pulses, in very good agreement with simulation results [4,12]. Another frequency-doubling magnicon amplifier [5] at the NLC frequency of 11.424 GHz has been designed and built in a collaboration between Omega-P, Inc. and Naval Research Laboratory (NRL).…”

Section: Technical Approach For Phase I Randdmentioning

confidence: 64%

“…As an example of this, the SLAC Klystron Department is developing a 10-MW L-band sheet beam klystron, to lower cost (as compared with "expensive" MBK's), and as a backup "…if the multi-beam program falters." [C. Adolfsen] The L-band magnicon proposed here is another alternative, but one which has the advantage of being based upon twenty years of experience in development and operation of magnicons in other frequency domains [3,4,5,6].…”

Section: Introductionmentioning

confidence: 99%

20-MW Magnicon for ILC

Hirshfield¹

2006

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State-of-the-Art of High-Power Gyro-Devices and Free Electron Masers

Thumm

2020

J Infrared Milli Terahz Waves

292

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STATE-OF-THE-ART OF HIGH POWER GYRO-DEVICES AND FREE ELECTRON MASERSAt present, gyrotron oscillators are mainly used as high power millimeter wave sources for electron cyclotron resonance heating (ECRH) and diagnostics of magnetically confmed plasmas for generation of energy by controlled thermonuclear fusion. 140 GHz gyrotrons with output power Pout = 0.58 MW, pulse length 't = 2.0 s and efficiency 11 = 34 % are commercially available. Diagnostic gyrotrons deliver P out = 40 kW with 't = 40 J-lS at frequencies up to 650 GHz (11 2_ 4 %). Recently, gyrotron oscillators have also been successfully used in matedal processing and plasma chemistry. Such technological applications require gyrotrons with the following parameters: f 2. 28 GHz , Pout = 10-30 kW, CW, 11 2. 30 %. This paper reports on achievements and problems related to the development of very high power mm-wave gyrotrons for long pulse or CW operation and describes the microwave technological pecularities of the different development steps. In addition, this work gives a short overview of the present development of gyrotrons for technological applications, quasi-optical gyrotrons, cyclotron autoresonance masers (CARMs), gyro-ldystrons, gyro-TWT amplifiers, gyro-BWO's and free electron masers (FEMs). The most impressive FEM output parameters are: Pout = 2GW, 't = 20 ns, 11 = 13 % at 140 GHz (LLNL) and Pout = 15 kW, 't = 20 J-tS, 11 = 5 % in the range from 120 to 900 GHz (UCSB). ENTWICKLUNGSSTAND VON HOCHLEISTUNGS-GYRO-RÖHREN UND FREI-ELEKTRONEN-MASERN Übersiebt Gyrotronoszillatoren werden derzeit vorwiegend als Hochleistungsmillimeterwellenquellen für die Elektron-Zyklotron-Resonanzheizung (ECRH) und Diagnostik von magnetisch eingeschlossenen Plasmen zur Erforschung der Energiegewinnung durch kontrollierte Kernfusion eingesetzt. 140 GHz Gyrotrons mit einer Ausgangsleistung von Pout = 0.58 MW bei Pulslängen von 't = 2.0 s und Wirkungsgraden von • 11 = 34% sind kommerziell erhältlich. Gyrotrons zur Plasmadiagnostik erreichen Frequenzen bis zu 650 GHz bei P out = 40 kW und 't = 40 ~-ts (11 2. 4 %). In jüngster Zeit jedoch finden Gyrotronoszillatoren auch für technologische Prozesse und in der Plasmachemie erfolgreich Verwendung. Dabei werden Röhren mit folgenden Parametern eingesetzt: f 2_ 28 GHz, Pout = 10-30 kW, CW, 11 2. 30 %. In diesem Beitrag wird auf den aktuellen Stand und die Probleme bei der Entwicklung von Hochleistungs-mm-Wellen-Gyrotrons für Langpuls-und Dauerstrichbetrieb sowie auf die mikrowellentechnischen Besonderheiten der einzelnen Entwicklungsphasen eingegangen: Außerdem wird auch kurz über den neuesten Stand der Entwicklung von Gyrotrons für technologische Anwendungen, quasi-optischen Gyrotrons, Zyklotron-Autoresonanz-Masern (CARMs), Gyroklystrons, Gyro-TWT-Verstärkern, Gyro-Rückwärtswellenoszillatoren (BWOs) und Frei-Elektronen-Maser (FEM) berichtet. FEM-Rekordausgangsparameter sind hier: Pout = 2 GW, 't = 20 ns, 11 = 13 % bei 140 GHz (LLNL) und Pout = 15 kW, 't = 20 J-lS, 11 = 5 % im Bereich von 120 bis 900 GHz (UCSB). Contents

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Present status of Budker INP 7 GHz pulsed magnicon

Cited by 12 publications

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120 MW, 800 MHz Magnicon for a Future Muon Collider

120 MW, 800 MHz Magnicon for a Future Muon Collider

20-MW Magnicon for ILC

State-of-the-Art of High-Power Gyro-Devices and Free Electron Masers

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