Electron lenses: historical overview and outlook

Shiltsev, Vladimir

doi:10.1088/1748-0221/16/03/p03039

Cited by 5 publications

(4 citation statements)

References 73 publications

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“…Required ABP explorations for future hadron colliders include efficient collimation techniques [76], electron lenses for Landau damping and collimation [77], dynamic aperture optimization methods to make possible new integrable optics solutions [78], and studies to obtain lower emittances from new particle sources for injecting beams in high-bunch-charge colliders.…”

Section: Other Beam Physicsmentioning

confidence: 99%

Challenges of Future Accelerators for Particle Physics Research

2022

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For over half a century, high-energy particle accelerators have been a major enabling technology for particle and nuclear physics research as well as sources of X-rays for photon science research in material science, chemistry and biology. Particle accelerators for energy and intensity Frontier research in particle and nuclear physics continuously push the accelerator community to invent ways to increase the energy and improve the performance of accelerators, reduce their cost, and make them more power efficient. The accelerator community has demonstrated imagination and creativity in developing a plethora of future accelerator ideas and proposals. The technical maturity of the proposed facilities ranges from shovel-ready to those that are still largely conceptual. At this time, over 100 contributed papers have been submitted to the Accelerator Frontier of the US particle physics decadal community planning exercise known as Snowmass’2021. These papers cover a broad spectrum of topics: beam physics and accelerator education, accelerators for neutrinos, colliders for Electroweak/Higgs studies and multi-TeV energies, accelerators for Physics Beyond Colliders and rare processes, advanced accelerator concepts, and accelerator technology for Radio Frequency cavities (RF), magnets, targets and sources. This paper provides an overview of the present state of accelerators for particle physics and gives a brief description of some of the major facilities that have been proposed, their perceived advantages and some of the remaining challenges.

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Section: Other Beam Physicsmentioning

confidence: 99%

Challenges of Future Accelerators for Particle Physics Research

2022

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“…Required ABP explorations for future hadron colliders include efficient collimation techniques [92], electron lenses for Landau damping and collimation [93], dynamic aperture optimization methods to make possible new integrable optics solutions [94], and studies to obtain lower emittances from new particle sources for injecting beams in high-bunch-charge colliders.…”

Section: Beam Physics and Accelerator Educationmentioning

confidence: 99%

“Snowmass’21” Accelerator Frontier

Gourlay¹,

Raumenheimer²,

Shiltsev

2021

“Snowmass’21” Accelerator Frontier

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Snowmass"is the form of organization of regular, every 6 to 8 years, discussions among the entire particle physics community to develop a scientific vision for the future of particle physics in the U.S. and its international partners. The Snowmass'21 {\it Accelerator Frontier} activities include discussions on high-energy hadron and lepton colliders, high-intensity beams for neutrino research and for the "Physics Beyond Colliders", accelerator technologies, science, education and outreach as well as the progress of core accelerator technology, including RF, magnets, targets and sources.

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“…The electron beam profile can be adjusted in time and space to provide an attractive force that counterbalances the repulsive space charge force. The construction and deployment of the electron lenses is well understood and they have been successfully used in colliders for beam-beam compensation and do not require special beam optics for their operation [8,9].…”

Section: Introductionmentioning

confidence: 99%

Self-consistent PIC simulations of ultimate space charge compensation with electron lenses

Stern¹,

Alexahin²,

Burov³

et al. 2021

J. Inst.

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Further progress of fundamental particle physics requires high intensity and high brightness of accelerated proton and ion beams. This goal is essential for the FAIR hadron beams at GSI, for the neutrino production at the facilities such as Fermilab and JPARC, and for the Large Hadron Collider luminosity at CERN. One of the most formidable obstacles toward that goal is the beam's own space charge, whose forces cause beam emittance growth, losses and lifetime degradation. Typically, such effects become intolerable when the space charge tune-shift parameter Δ QSC exceeds ∼ - (0.25–0.5). To reduce these detrimental effects, it was suggested to use electron lenses to compensate the space charge forces. This paper reports on detailed particle-in-cell space charge and electron lens compensation simulations for extremely intense proton bunches whose space charge tune-shift parameter exceeds -1.0. Different scenarios were evaluated based on reduction in the emittance growth and particle loss at a 4σ aperture. We investigate phenomena and issues related to the focusing lattice errors, importance of the transverse and longitudinal matching of the electron beam profiles to the proton ones, and vary the strength and the number of the electron lenses distributed around a circular machine to optimize the reduction of harmful space charge effects.

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Electron lenses: historical overview and outlook

Cited by 5 publications

References 73 publications

Challenges of Future Accelerators for Particle Physics Research

Challenges of Future Accelerators for Particle Physics Research

“Snowmass’21” Accelerator Frontier

Self-consistent PIC simulations of ultimate space charge compensation with electron lenses

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