20MWp High-efficiency L band multi-beam klystron for CLIC drive beam

Marchesin, Rodolphe; Beunas, A.; Thouvenin, Philippe; Khlifa, Karim Haj; Vuillemin, Q.

doi:10.1109/ivec.2017.8289589

Cited by 3 publications

(2 citation statements)

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“…A commercially available 20 MW L-band klystron can supply enough RF power for the accelerator. Similar klystrons and modulators have also already been built and tested for the CLIC project (Marchesin et al, 2018), operating at 50 Hz with 150 µs pulses.…”

Section: Accelerator Designmentioning

confidence: 99%

Feasibility study of high-power electron linac for clinical X-ray ROAD-FLASH therapy system

Kutsaev,

Agustsson,

Boucher

et al. 2024

Front. Med. Eng.

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Introduction: This study examines how a practical source of X-ray radiation, capable of delivering unprecedented X-ray of 100 Gy/s at 1 m for X-ray FLASH radiotherapy can be designed.Methods: We proposed the design of a linac, capable of accelerating 18 MeV 8 mA electron beam with further conversion to bremsstrahlung X-rays. The design is based on L-band traveling wave accelerating structures with high power efficiency, operating in a short-burst/long-pulse regime that allows operating power supply in a regime, beyond its specifications.Results: This study demonstrates the feasibility of a high-power linac for a clinical X-ray FLASH therapy system, using detailed analysis and simulations. Despite ∼500x higher output than a standard clinical linac, the design utilizes available accelerator components for maximal practicality.Discussion: Recent studies have demonstrated that the FLASH effect that allows to effectively kill tumor cells while sparing normal tissue occurs when large dose rates (≥40 Gy/s) are delivered in less than 1 s. Photons are very attractive since modest energies of several MeV are needed, which can be achieved with compact and cost-efficient accelerators. However, since the efficiency of electron-to-photon conversion is only a few percent, the required beam intensity must be an order of magnitude higher than that state-of-the-art accelerators can provide. The proposed ROAD-FLASH accelerator layout allows achieving both the FLASH dose rate and superior dose conformity, comparing to the similar projects. The current paper focuses on providing a technical roadmap for building an economical and practical linear accelerator for ROAD X-ray FLASH delivery.

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Section: Accelerator Designmentioning

confidence: 99%

Feasibility study of high-power electron linac for clinical X-ray ROAD-FLASH therapy system

Kutsaev,

Agustsson,

Boucher

et al. 2024

Front. Med. Eng.

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“…The performance surpasses the CEPC specs and promises lower power consumption and reduced production costs at the same time. An other important means to reduce the power consumption is the development of more efficient klystrons, where both CERN and IHEP are reaching efficiencies beyond 80% based on new design methods [27,28]. The power estimates for CLIC, FCCee and CEPC are based on these developments, while the power estimates for ILC still assume an efficiency of 65% based on commercially available klystrons.…”

Section: Recent Developmentsmentioning

confidence: 99%

Status of e+e- Higgs factory projects

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2023

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2023)

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An electron-positron collider designed for precision studies of the Higgs boson, a so-called Higgs factory is the highest-priority next collider of the particle physics community. This contribution summarises the key physics goals of such a Higgs factory and reviews the status of the various proposed realisations from mature concepts to very recent ideas. The commonalities and special advantages of circular and linear approaches will be discussed, respectively, before highlighting some recent developments regarding the key technologies, the operation scenarios and sustainability aspects for future colliders.

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