Search Results - "Peauger, F."
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Exploratory Study on High-Efficiency High-Power W -Band Klystron Based on Kladistron Technology
Published in IEEE transactions on plasma science (01-02-2023)“…To achieve tens of kilowatt (kW) output power, W-band klystron usually employs a large beam tunnel to accommodate high current. The deteriorated effective…”
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Journal Article -
2
Progress and R/D challenges for FCC-ee SRF
Published in EPJ techniques and instrumentation (16-03-2023)“…The FCC-ee machines present a huge challenge for the RF systems, which need to be adapted to very diverse beam conditions going from moderate energy and high…”
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3
Electromigration occurences and its effects on metallic surfaces submitted to high electromagnetic field: A novel approach to breakdown in accelerators
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-02-2011)“…The application of a high electrical field on metallic surfaces leads to the well described phenomena of breakdown. In the classical scenario, explosive…”
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4
Development of vertical electropolishing process applied on 1300 and 704 MHz superconducting niobium resonators
Published in Physical review special topics. PRST-AB. Accelerators and beams (01-08-2014)“…An advanced setup for vertical electropolishing of superconducting radio-frequency niobium elliptical cavities has been installed at CEA Saclay. Cavities are…”
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5
Carbon nanotubes as electron sources
Published in Physica status solidi. A, Applications and materials science (01-05-2006)“…Carbon nanotubes (CNTs) are a unique form of carbon filament/fiber in which the graphene walls roll up to form tubes. They can exhibit either metallic‐like or…”
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Journal Article Conference Proceeding -
6
Development of a 3.7-GHz 750-kW CW Klystron for Tore Supra
Published in IEEE transactions on electron devices (01-05-2005)“…A 3.7-GHz 750-kW klystron in continuous-wave (CW) operation is under development to upgrade the lower hybrid RF power of Tore Supra up to 12 MW. Four different…”
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Developing the next LHCD source for Tore Supra
Published in Fusion engineering and design (01-11-2005)“…One of the main Tore Supra objectives is to produce long and high performance discharges, studies which are crucial for the next step. In the frame of the…”
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Journal Article Conference Proceeding -
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Microwave devices Carbon nanotubes as cold cathodes
Published in Nature (13-10-2005)“…To communicate, spacecraft and satellites rely on microwave devices, which at present are based on relatively inefficient thermionic electron sources that…”
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Erratum to: Electromigration occurences and its effects on metallic surfaces submitted to high electromagnetic field: A novel approach to breakdown in accelerators
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-04-2012)“…We regret to inform you that the: Electromigration occurences and its effects on metallic surfaces submitted to high electromagnetic field: A novel approach to…”
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High current density nanofilament cathodes for microwave amplifiers
Published in Technical Digest of the 17th International Vacuum Nanoelectronics Conference (IEEE Cat. No.04TH8737) (2004)“…We study high current density nanofilament cathodes for microwave amplifiers. Two different types of aligned nanofilament array have been studied: first,…”
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Conference Proceeding -
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Electromigration occurrences and its effects on metallic surfaces submitted to high electromagnetic field : A novel approach to breakdown in accelerators
Published 13-01-2012“…Nuclear Inst. and Methods in Physics Research, A - Volume 665 (2012) The application of a high electrical field on metallic surfaces leads to the well…”
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Journal Article -
12
Carbon nanotube cathodes as electron sources for microwave amplifiers
Published in 2007 7th IEEE Conference on Nanotechnology (IEEE NANO) (01-08-2007)“…Cold cathodes based on carbon nanotubes allow to produce a modulated electron beam. Using an array of vertically aligned CNs that exhibit an aspect ratio of…”
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Conference Proceeding -
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High power CW klystron for fusion experiments
Published in Fifth IEEE International Vacuum Electronics Conference (IEEE Cat. No.04EX786) (2004)“…The lower hybrid heating system of Tore Supra includes presently 16 TH2103 klystrons delivering 500 kW each at 3.7 GHz. These klystrons which operate in long…”
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Conference Proceeding -
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TED high power pulsed klystrons for the spallation neutron source
Published in 4th IEEE International Conference on Vacuum Electronics, 2003 (2003)“…This paper presents TED (Thales Electron Devices) high power pulsed klystrons for the spallation source. TEDs have engaged in the development of three…”
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Conference Proceeding -
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GHz modulation of carbon nanotube cathodes for microwave amplifiers
Published in 5th IEEE Conference on Nanotechnology, 2005 (2005)“…Cold cathodes based on carbon nanotubes (CNs) allow to produce a pulsed/directly modulated electron beam. Using an array of vertically aligned CNs that exhibit…”
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Conference Proceeding -
16
RF modulation of a 3 mA beam current from a carbon nanotube cathode
Published in 2005 International Vacuum Nanoelectronics Conference (2005)“…A micro-triode operating at 30 GHz is currently under development. This triode is composed of two 30 GHz re-entrant resonant cavities (input and output,…”
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Conference Proceeding