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Klystron
Publications associées (77)
Homogenous power distribution along gyrotron collector walls
Stefano Alberti, Jean-Philippe Hogge, Damien Fasel, Ugo Siravo, Jérémie Dubray, Miguel Filipe Silva Füglister, Pierre-François Isoz
EC RF power sources will play a major role in the future operation of large scale tokamaks (ITER, DEMO). A 1MW/170GHz gyrotron is the standard RF power unit considered for ITER. Even though the efficiency of such devices has been significantly increased th ...
2023Toward a brightness upgrade to the SwissFEL: A high gradient traveling-wave rf photogun
Mike Seidel, Paolo Craievich, Sven Reiche, Anastasiya Magazinik
The first generation of S-band injectors for free-electron lasers has illustrated high reliability and performance by driving the latest generation of high brightness machines. However, the ultimate electron beam brightness of these devices is limited by t ...
College Pk20234-Port Microstrip planar resonator for multiband microwave material characterization applications
Planar microstrip resonators suitable for material characterization application are presented in this paper. The prototype consists of three resonators fed through four ports in a planar dielectric substrate without any additional resonators. The resonator ...
IEEE2022Emittance growth suppression with a multibunch feedback in high-energy hadron colliders: Numerical optimization of the gain and bandwidth
Xavier Buffat, Sondre Vik Furuseth
A transverse feedback system can effectively mitigate the emittance growth caused by injection oscillations and machine noise in hadron beams. However, as its action on the beam depends on beam position measurements of finite accuracy, it introduces additi ...
AMER PHYSICAL SOC2021The high-power helicon program at DIII-D: gearing up for first experiments
Helicon current drive (CD), also called fast wave CD in the lower hybrid range of frequencies, has long been regarded as a promising CD tool for reactor grade plasmas. A newly installed MW-level system at DIII-D will be the first test of this technology in ...
IOP Publishing Ltd2021