RF cavity design for a low-cost 1 MeV proton source

D Soriano Guillen; Rebecca Seviour; S Hunt

doi:10.18429/JACoW-IPAC2017-THPIK110

RF cavity design for a low-cost 1 MeV proton source

D Soriano Guillen, Rebecca Seviour, S Hunt

Alceli Ltd.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In this paper we present the design for a low-cost RF cavity capable of accelerating protons from 100 keV to 1 MeV. The system is designed to meet the specifications from the proposed Alceli LTD medical proton therapy linac, to deliver a 1 nA proton beam current with a 1 kHz repetition rate.
We present a design of an RF normal conducting (NC) re-entrant Cu cavity operating at 40MHz consisting of a coupled two cavity system, both driven by a single Marx generator. The choice of such a low operating frequency for the cavity system enables us to use a relatively low-cost cost Marx Generator as the RF source. Marx generators work in a similar fashion to a Cockcroft-Walton accelerator (without the expensive components), creating a high-voltage pulse by charging a number of capacitors relatively slowly in parallel, then rapidly discharging in series, via spark gaps. Marx generators can deliver 2.5GW, 1 ns pulses, with rise times of 200 ps, and (relatively) low jitter.

Original language	English
Title of host publication	Proceedings of the 8th International Particle Accelerator Conference (IPAC '17)
Publisher	Joint Accelerator Conferences Website (JACoW)
Pages	4355-4357
Number of pages	3
ISBN (Print)	9783954501823
DOIs	https://doi.org/10.18429/JACoW-IPAC2017-THPIK110
Publication status	Published - 14 May 2017
Event	8th International Particle Accelerator Conference - Copenhagen, Denmark Duration: 14 May 2017 → 19 May 2017 Conference number: 8 https://ipac17.org/ (Link to Conference Website )

Conference

Conference	8th International Particle Accelerator Conference
Abbreviated title	IPAC'17
Country/Territory	Denmark
City	Copenhagen
Period	14/05/17 → 19/05/17
Internet address	https://ipac17.org/ (Link to Conference Website )

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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http://accelconf.web.cern.ch/AccelConf/ipac2017/papers/thpik110.pdfLicence: CC BY

Cite this

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title = "RF cavity design for a low-cost 1 MeV proton source",

abstract = "In this paper we present the design for a low-cost RF cavity capable of accelerating protons from 100 keV to 1 MeV. The system is designed to meet the specifications from the proposed Alceli LTD medical proton therapy linac, to deliver a 1 nA proton beam current with a 1 kHz repetition rate. We present a design of an RF normal conducting (NC) re-entrant Cu cavity operating at 40MHz consisting of a coupled two cavity system, both driven by a single Marx generator. The choice of such a low operating frequency for the cavity system enables us to use a relatively low-cost cost Marx Generator as the RF source. Marx generators work in a similar fashion to a Cockcroft-Walton accelerator (without the expensive components), creating a high-voltage pulse by charging a number of capacitors relatively slowly in parallel, then rapidly discharging in series, via spark gaps. Marx generators can deliver 2.5GW, 1 ns pulses, with rise times of 200 ps, and (relatively) low jitter.",

keywords = "acceleration, cavity, impedance, proton, simulation",

author = "\{Soriano Guillen\}, D and Rebecca Seviour and S Hunt",

note = "Funding Information: Mr. Soriano Guillen would like to thank Fundaci?n Mutua Madrile?a for the economic support to take part in this research. Publisher Copyright: {\textcopyright} 2017 CC-BY-3.0 and by the respective authors Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; 8th International Particle Accelerator Conference, IPAC'17 ; Conference date: 14-05-2017 Through 19-05-2017",

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month = may,

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doi = "10.18429/JACoW-IPAC2017-THPIK110",

language = "English",

isbn = "9783954501823",

pages = "4355--4357",

booktitle = "Proceedings of the 8th International Particle Accelerator Conference (IPAC '17)",

publisher = "Joint Accelerator Conferences Website (JACoW)",

address = "Switzerland",

url = "https://ipac17.org/",

}

Soriano Guillen, D, Seviour, R & Hunt, S 2017, RF cavity design for a low-cost 1 MeV proton source. in Proceedings of the 8th International Particle Accelerator Conference (IPAC '17). Joint Accelerator Conferences Website (JACoW), pp. 4355-4357, 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14/05/17. https://doi.org/10.18429/JACoW-IPAC2017-THPIK110

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T1 - RF cavity design for a low-cost 1 MeV proton source

AU - Soriano Guillen, D

AU - Seviour, Rebecca

AU - Hunt, S

N1 - Conference code: 8

PY - 2017/5/14

Y1 - 2017/5/14

N2 - In this paper we present the design for a low-cost RF cavity capable of accelerating protons from 100 keV to 1 MeV. The system is designed to meet the specifications from the proposed Alceli LTD medical proton therapy linac, to deliver a 1 nA proton beam current with a 1 kHz repetition rate. We present a design of an RF normal conducting (NC) re-entrant Cu cavity operating at 40MHz consisting of a coupled two cavity system, both driven by a single Marx generator. The choice of such a low operating frequency for the cavity system enables us to use a relatively low-cost cost Marx Generator as the RF source. Marx generators work in a similar fashion to a Cockcroft-Walton accelerator (without the expensive components), creating a high-voltage pulse by charging a number of capacitors relatively slowly in parallel, then rapidly discharging in series, via spark gaps. Marx generators can deliver 2.5GW, 1 ns pulses, with rise times of 200 ps, and (relatively) low jitter.

AB - In this paper we present the design for a low-cost RF cavity capable of accelerating protons from 100 keV to 1 MeV. The system is designed to meet the specifications from the proposed Alceli LTD medical proton therapy linac, to deliver a 1 nA proton beam current with a 1 kHz repetition rate. We present a design of an RF normal conducting (NC) re-entrant Cu cavity operating at 40MHz consisting of a coupled two cavity system, both driven by a single Marx generator. The choice of such a low operating frequency for the cavity system enables us to use a relatively low-cost cost Marx Generator as the RF source. Marx generators work in a similar fashion to a Cockcroft-Walton accelerator (without the expensive components), creating a high-voltage pulse by charging a number of capacitors relatively slowly in parallel, then rapidly discharging in series, via spark gaps. Marx generators can deliver 2.5GW, 1 ns pulses, with rise times of 200 ps, and (relatively) low jitter.

KW - acceleration

KW - cavity

KW - impedance

KW - proton

KW - simulation

UR - http://accelconf.web.cern.ch/AccelConf/ipac2017/

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U2 - 10.18429/JACoW-IPAC2017-THPIK110

DO - 10.18429/JACoW-IPAC2017-THPIK110

M3 - Conference contribution

SN - 9783954501823

SP - 4355

EP - 4357

BT - Proceedings of the 8th International Particle Accelerator Conference (IPAC '17)

PB - Joint Accelerator Conferences Website (JACoW)

T2 - 8th International Particle Accelerator Conference

Y2 - 14 May 2017 through 19 May 2017

ER -

RF cavity design for a low-cost 1 MeV proton source

Abstract

Conference

UN SDGs

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