High Pressure Gas Filled RF Cavity Beam Test at the Fermilab MuCool Test Area

Freemire, Ben

doi:10.2172/1128039

Cited by 7 publications

(6 citation statements)

References 61 publications

(109 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This example is relevant to the representative SPACE application to the plasma loading of high-pressure RF cavities, described in more detail in Section 4. When an electronegative gas such as oxygen is added to the hydrogen gas, a three-body attachment process takes place in the plasma, which is significantly faster than the electron -ion recombination [26]. The negative ions produced by the attachment process recombine with hydrogen ions.…”

Section: Atomic Physics Algorithmsmentioning

confidence: 99%

SPACE: 3D Parallel Solvers for Vlasov-Maxwell and Vlasov-Poisson Equations for Relativistic Plasmas with Atomic Transformations

Yu,

Kumar,

Yuan

et al. 2021

Preprint

View full text Add to dashboard Cite

A parallel, relativistic, three-dimensional particle-in-cell code SPACE has been developed for the simulation of electromagnetic fields, relativistic particle beams, and plasmas. In addition to the standard second-order Particle-in-Cell (PIC) algorithm, SPACE includes efficient novel algorithms to resolve atomic physics processes such as multi-level ionization of plasma atoms, recombination, and electron attachment to dopants in dense neutral gases. SPACE also contains a highly adaptive particle-based method, called Adaptive Particle-in-Cloud (AP-Cloud), for solving the Vlasov-Poisson problems. It eliminates the traditional Cartesian mesh of PIC and replaces it with an adaptive octree data structure. The code's algorithms, structure, capabilities, parallelization strategy and performances have been discussed. Typical examples of SPACE applications to accelerator science and engineering problems are also presented.

show abstract

Section: Atomic Physics Algorithmsmentioning

confidence: 99%

SPACE: 3D Parallel Solvers for Vlasov-Maxwell and Vlasov-Poisson Equations for Relativistic Plasmas with Atomic Transformations

Yu,

Kumar,

Yuan

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…When an electronegative gas such as oxygen is added to the hydrogen gas, a three-body attachment process takes place in the plasma, which is significantly faster than the electron -ion recombination [7]. The negative ions produced by the attachment process recombine with hydrogen ions.…”

Section: Attachment and Ion -Ion Recombinationmentioning

confidence: 99%

“…Another factor contributing to the plasma loading simulations is the distribution of the RF field (E 0 (x, y, z)) in the cavity, studied in [7]. The RF field amplitude significantly changes in the longitudinal direction, while the change in the radial direction is negligibly small across the plasma column.…”

Section: Numerical Algorithms and Their Implementationmentioning

confidence: 99%

See 1 more Smart Citation

Simulation of plasma loading of high-pressure RF cavities

Yu¹,

Samulyak²,

Yonehara³

et al. 2018

J. Inst.

View full text Add to dashboard Cite

Muon beam-induced plasma loading of radio-frequency (RF) cavities filled with high pressure hydrogen gas with 1% dry air dopant has been studied via numerical simulations. The electromagnetic code SPACE, that resolves relevant atomic physics processes, including ionization by the muon beam, electron attachment to dopant molecules, and electron-ion and ion-ion recombination, has been used. Simulations studies have been performed in the range of parameters typical for practical muon cooling channels.

show abstract

“…While pressurized cavities suppress breakdown [51], loading of the cavity by ionization electrons was anticipated to be problematic in pure hydrogen. A dedicated R&D program at the MTA showed that doping the hydrogen with a percent-level admixture of dry air suffices to suppress this plasma loading, allowing operation at muon collider intensities [52].…”

Section: Icnfp 2014mentioning

confidence: 99%

Muon colliders and neutrino factories

Kaplan¹,

collaborations²

2015

EPJ Web of Conferences

View full text Add to dashboard Cite

Abstract. Muon colliders and neutrino factories are attractive options for future facilities aimed at achieving the highest lepton-antilepton collision energies and precision measurements of Higgs boson and neutrino mixing matrix parameters. The facility performance and cost depend on how well a beam of muons can be cooled. Recent progress in muon cooling design studies and prototype tests nourishes the hope that such facilities could be built starting in the coming decade. The status of the key technologies and their various demonstration experiments is summarized. Prospects "post-P5" are also discussed.

show abstract

High Pressure Gas Filled RF Cavity Beam Test at the Fermilab MuCool Test Area

Abstract: The results extrapolated to the parameters of a Neutrino Factory and Muon Collider indicate that a high pressure gas filled RF cavity will work in a coolingchannel for either machine. A demonstration experiment is warranted to prove this technology's validity.

Cited by 7 publications

References 61 publications

SPACE: 3D Parallel Solvers for Vlasov-Maxwell and Vlasov-Poisson Equations for Relativistic Plasmas with Atomic Transformations

SPACE: 3D Parallel Solvers for Vlasov-Maxwell and Vlasov-Poisson Equations for Relativistic Plasmas with Atomic Transformations

Simulation of plasma loading of high-pressure RF cavities

Muon colliders and neutrino factories

Contact Info

Product

Resources

About