Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron

Abstract X-ray free electron laser (XFEL) facility based on electron linear accelerator (LINAC) is regarded as one kind of the fourth-generation light source with the characteristics of high intensity, exceptional brightness, ultrashort pulse duration, and spatial coherence. In electron linear accel...

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Autores principales:	Yongfang Liu, Hiroshi Matsumoto, Lin Li, Ming Gu
Formato:	article
Lenguaje:	EN
Publicado:	Springer 2021
Materias:	High-power microwave Pulse modulator Klystron LINAC Stability Beam energy fluctuation Science Q Technology T
Acceso en línea:	https://doaj.org/article/e8a6287f25b04b758d45a8b68b5e03d7
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spelling	oai:doaj.org-article:e8a6287f25b04b758d45a8b68b5e03d72021-12-05T12:10:01ZAnalysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron10.1007/s42452-021-04889-72523-39632523-3971https://doaj.org/article/e8a6287f25b04b758d45a8b68b5e03d72021-12-01T00:00:00Zhttps://doi.org/10.1007/s42452-021-04889-7https://doaj.org/toc/2523-3963https://doaj.org/toc/2523-3971Abstract X-ray free electron laser (XFEL) facility based on electron linear accelerator (LINAC) is regarded as one kind of the fourth-generation light source with the characteristics of high intensity, exceptional brightness, ultrashort pulse duration, and spatial coherence. In electron linear accelerator, energy of beam bunches is provided by high-power electromagnetic microwaves which are generated by a microwave tube called klystron. The stability of beam voltage of klystron occupies a key position in both the stability of output RF (Radio Frequency) power and the jitter of output RF phase, furthermore, it plays an extremely important role in beam energy stability of electron linear accelerator. In this paper, high power RF fluctuation and phase jitter of klystron output caused by beam voltage instability of klystron are analyzed and calculated. Influence of klystron beam voltage instability on beam energy gain in linear accelerator have also been further analyzed and calculated. The calculating procedure is particularly valuable for us to understand the relationship between pulse modulator stability and beam energy gain fluctuations. Finally, relevant experimental results measured by Shanghai Soft X-ray Free Electron Laser Test Facility (SXFEL-TF) is presented.Yongfang LiuHiroshi MatsumotoLin LiMing GuSpringerarticleHigh-power microwavePulse modulatorKlystronLINACStabilityBeam energy fluctuationScienceQTechnologyTENSN Applied Sciences, Vol 4, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	High-power microwave Pulse modulator Klystron LINAC Stability Beam energy fluctuation Science Q Technology T
spellingShingle	High-power microwave Pulse modulator Klystron LINAC Stability Beam energy fluctuation Science Q Technology T Yongfang Liu Hiroshi Matsumoto Lin Li Ming Gu Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron
description	Abstract X-ray free electron laser (XFEL) facility based on electron linear accelerator (LINAC) is regarded as one kind of the fourth-generation light source with the characteristics of high intensity, exceptional brightness, ultrashort pulse duration, and spatial coherence. In electron linear accelerator, energy of beam bunches is provided by high-power electromagnetic microwaves which are generated by a microwave tube called klystron. The stability of beam voltage of klystron occupies a key position in both the stability of output RF (Radio Frequency) power and the jitter of output RF phase, furthermore, it plays an extremely important role in beam energy stability of electron linear accelerator. In this paper, high power RF fluctuation and phase jitter of klystron output caused by beam voltage instability of klystron are analyzed and calculated. Influence of klystron beam voltage instability on beam energy gain in linear accelerator have also been further analyzed and calculated. The calculating procedure is particularly valuable for us to understand the relationship between pulse modulator stability and beam energy gain fluctuations. Finally, relevant experimental results measured by Shanghai Soft X-ray Free Electron Laser Test Facility (SXFEL-TF) is presented.
format	article
author	Yongfang Liu Hiroshi Matsumoto Lin Li Ming Gu
author_facet	Yongfang Liu Hiroshi Matsumoto Lin Li Ming Gu
author_sort	Yongfang Liu
title	Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron
title_short	Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron
title_full	Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron
title_fullStr	Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron
title_full_unstemmed	Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron
title_sort	analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron
publisher	Springer
publishDate	2021
url	https://doaj.org/article/e8a6287f25b04b758d45a8b68b5e03d7
work_keys_str_mv	AT yongfangliu analysistheinfluenceofpulsetopulsestabilityofmodulatoronhighpowermicrowaveoutputofpulsedklystron AT hiroshimatsumoto analysistheinfluenceofpulsetopulsestabilityofmodulatoronhighpowermicrowaveoutputofpulsedklystron AT linli analysistheinfluenceofpulsetopulsestabilityofmodulatoronhighpowermicrowaveoutputofpulsedklystron AT minggu analysistheinfluenceofpulsetopulsestabilityofmodulatoronhighpowermicrowaveoutputofpulsedklystron
_version_	1718372226985623552

Analysis the influence of pulse-to-pulse stability of modulator on high-power microwave output of pulsed klystron

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