Development of 36 GHz RF systems for RF linearisers

A. Castilla; J. Cai; G. Burt; X. Wu; A. Latina; X. Liu; I. Syratchev; W. Wuensch; L. Zhang; L. J. R. Nix; A. W. Cross; B. Spataro; M. Behtouei

doi:10.18429/JACoW-IPAC2021-FRXB02

Development of 36 GHz RF systems for RF linearisers

A. Castilla, J. Cai, G. Burt, X. Wu, A. Latina, X. Liu, I. Syratchev, W. Wuensch, L. Zhang, L. J. R. Nix, A. W. Cross, B. Spataro, M. Behtouei

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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Abstract

As part of the deign studies, the CompactLight project plans to use an injector in the C-band. Which constitutes a particular complication for the harmonic system in charge of linearising the beam’s phase space, since it means its operation frequency could be higher than the standard X-band RF technologies. In the present work, we investigated a 36 GHz (Ka-band) as the ideal frequency for the harmonic system. A set of structure designs are presented as candidates for the lineariser, based on different powering schemes and pulse compressor technologies. The comparison is made both in terms of beam dynamics and RF performance. Given the phase stability requirements for the MW class RF sources needed for this system, we performed careful studies of a Gyro-Klystron and a multi-beam klystron as potential RF sources, with both showing up to 3 MW available power using moderate modulator voltages. Alternatives for pulse compression at Ka-band are also discussed in this work.

Original language	English
Title of host publication	Proceedings of the 12th International Particle Accelerator Conference
Editors	Liu Lin, John M. Byrd, Regis Neuenschwander, Renan Picoreti, Volker R. W. Schaa
Place of Publication	Geneva, Switzerland
Pages	4518-4523
Number of pages	6
ISBN (Electronic)	9783954502141
DOIs	https://doi.org/10.18429/JACoW-IPAC2021-FRXB02
Publication status	Published - 25 Aug 2021
Event	The 12th International Particle Accelerator Conference: IPAC 21 - Virtual, Campinas, Brazil Duration: 24 May 2021 → 28 May 2021 https://www.ipac21.org/index.php#

Conference

Conference	The 12th International Particle Accelerator Conference
Country/Territory	Brazil
City	Campinas
Period	24/05/21 → 28/05/21
Internet address	https://www.ipac21.org/index.php#

Keywords

phase stability
CompactLight project
phase space
operation frequency

Access to Document

10.18429/JACoW-IPAC2021-FRXB02Licence: CC BY 3.0

Castilla-etal-IPAC2021-Development-of-36-GHz-RF-systems-for-RF-linearisersFinal published version, 778 KBLicence: CC BY 3.0

Cite this

Castilla, A., Cai, J., Burt, G., Wu, X., Latina, A., Liu, X., Syratchev, I., Wuensch, W., Zhang, L., Nix, L. J. R., Cross, A. W., Spataro, B., & Behtouei, M. (2021). Development of 36 GHz RF systems for RF linearisers. In L. Lin, J. M. Byrd, R. Neuenschwander, R. Picoreti, & V. R. W. Schaa (Eds.), Proceedings of the 12th International Particle Accelerator Conference (pp. 4518-4523). https://doi.org/10.18429/JACoW-IPAC2021-FRXB02

@inproceedings{10ce6a803dcb449fa8c11604ebb03e5b,

title = "Development of 36 GHz RF systems for RF linearisers",

abstract = "As part of the deign studies, the CompactLight project plans to use an injector in the C-band. Which constitutes a particular complication for the harmonic system in charge of linearising the beam{\textquoteright}s phase space, since it means its operation frequency could be higher than the standard X-band RF technologies. In the present work, we investigated a 36 GHz (Ka-band) as the ideal frequency for the harmonic system. A set of structure designs are presented as candidates for the lineariser, based on different powering schemes and pulse compressor technologies. The comparison is made both in terms of beam dynamics and RF performance. Given the phase stability requirements for the MW class RF sources needed for this system, we performed careful studies of a Gyro-Klystron and a multi-beam klystron as potential RF sources, with both showing up to 3 MW available power using moderate modulator voltages. Alternatives for pulse compression at Ka-band are also discussed in this work.",

keywords = "phase stability, CompactLight project, phase space, operation frequency",

author = "A. Castilla and J. Cai and G. Burt and X. Wu and A. Latina and X. Liu and I. Syratchev and W. Wuensch and L. Zhang and Nix, {L. J. R.} and Cross, {A. W.} and B. Spataro and M. Behtouei",

year = "2021",

month = aug,

day = "25",

doi = "10.18429/JACoW-IPAC2021-FRXB02",

language = "English",

pages = "4518--4523",

editor = "Liu Lin and Byrd, {John M.} and Regis Neuenschwander and Renan Picoreti and Schaa, {Volker R. W.}",

booktitle = "Proceedings of the 12th International Particle Accelerator Conference",

note = "The 12th International Particle Accelerator Conference : IPAC 21 ; Conference date: 24-05-2021 Through 28-05-2021",

url = "https://www.ipac21.org/index.php#",

}

Castilla, A, Cai, J, Burt, G, Wu, X, Latina, A, Liu, X, Syratchev, I, Wuensch, W, Zhang, L, Nix, LJR, Cross, AW, Spataro, B & Behtouei, M 2021, Development of 36 GHz RF systems for RF linearisers. in L Lin, JM Byrd, R Neuenschwander, R Picoreti & VRW Schaa (eds), Proceedings of the 12th International Particle Accelerator Conference. Geneva, Switzerland, pp. 4518-4523, The 12th International Particle Accelerator Conference, Campinas, Brazil, 24/05/21. https://doi.org/10.18429/JACoW-IPAC2021-FRXB02

Development of 36 GHz RF systems for RF linearisers. / Castilla, A.; Cai, J.; Burt, G. et al.

Proceedings of the 12th International Particle Accelerator Conference. ed. / Liu Lin; John M. Byrd; Regis Neuenschwander; Renan Picoreti; Volker R. W. Schaa. Geneva, Switzerland, 2021. p. 4518-4523.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Development of 36 GHz RF systems for RF linearisers

AU - Castilla, A.

AU - Cai, J.

AU - Burt, G.

AU - Wu, X.

AU - Latina, A.

AU - Liu, X.

AU - Syratchev, I.

AU - Wuensch, W.

AU - Zhang, L.

AU - Nix, L. J. R.

AU - Cross, A. W.

AU - Spataro, B.

AU - Behtouei, M.

PY - 2021/8/25

Y1 - 2021/8/25

N2 - As part of the deign studies, the CompactLight project plans to use an injector in the C-band. Which constitutes a particular complication for the harmonic system in charge of linearising the beam’s phase space, since it means its operation frequency could be higher than the standard X-band RF technologies. In the present work, we investigated a 36 GHz (Ka-band) as the ideal frequency for the harmonic system. A set of structure designs are presented as candidates for the lineariser, based on different powering schemes and pulse compressor technologies. The comparison is made both in terms of beam dynamics and RF performance. Given the phase stability requirements for the MW class RF sources needed for this system, we performed careful studies of a Gyro-Klystron and a multi-beam klystron as potential RF sources, with both showing up to 3 MW available power using moderate modulator voltages. Alternatives for pulse compression at Ka-band are also discussed in this work.

AB - As part of the deign studies, the CompactLight project plans to use an injector in the C-band. Which constitutes a particular complication for the harmonic system in charge of linearising the beam’s phase space, since it means its operation frequency could be higher than the standard X-band RF technologies. In the present work, we investigated a 36 GHz (Ka-band) as the ideal frequency for the harmonic system. A set of structure designs are presented as candidates for the lineariser, based on different powering schemes and pulse compressor technologies. The comparison is made both in terms of beam dynamics and RF performance. Given the phase stability requirements for the MW class RF sources needed for this system, we performed careful studies of a Gyro-Klystron and a multi-beam klystron as potential RF sources, with both showing up to 3 MW available power using moderate modulator voltages. Alternatives for pulse compression at Ka-band are also discussed in this work.

KW - phase stability

KW - CompactLight project

KW - phase space

KW - operation frequency

U2 - 10.18429/JACoW-IPAC2021-FRXB02

DO - 10.18429/JACoW-IPAC2021-FRXB02

M3 - Conference contribution book

SP - 4518

EP - 4523

BT - Proceedings of the 12th International Particle Accelerator Conference

A2 - Lin, Liu

A2 - Byrd, John M.

A2 - Neuenschwander, Regis

A2 - Picoreti, Renan

A2 - Schaa, Volker R. W.

CY - Geneva, Switzerland

T2 - The 12th International Particle Accelerator Conference

Y2 - 24 May 2021 through 28 May 2021

ER -

Development of 36 GHz RF systems for RF linearisers

Abstract

Conference

Keywords

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