A5022490159- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Gyrotron and Vacuum Electronics Research
- Magnetic confinement fusion research
- Particle Detector Development and Performance
- Laser-Plasma Interactions and Diagnostics
- Particle physics theoretical and experimental studies
- Quantum chaos and dynamical systems
- Electron and X-Ray Spectroscopy Techniques
- Advanced X-ray Imaging Techniques
- Muon and positron interactions and applications
- Plasma Diagnostics and Applications
- Nonlinear Waves and Solitons
- Photocathodes and Microchannel Plates
- Laser Design and Applications
- Advanced Electron Microscopy Techniques and Applications
- High-Energy Particle Collisions Research
- Radiation Therapy and Dosimetry
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Quantum Information and Cryptography
- Nonlinear Photonic Systems
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
Brookhaven College
2024-2025
Dominion (United States)
2024-2025
Thomas Jefferson National Accelerator Facility
2023-2024
Old Dominion University
2023-2024
Fermi National Accelerator Laboratory
2015-2024
Dominion University College
2024
Brookhaven National Laboratory
2024
University of Chicago
2017-2023
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
2023
Oak Ridge National Laboratory
2023
The Integrable Optics Test Accelerator (IOTA) is a storage ring for advanced beam physics research currently being built and commissioned at Fermilab. It will operate with protons electrons using injectors momenta of 70 150 MeV/c, respectively. program includes the study nonlinear focusing integrable optical lattices based on special magnets electron lenses, dynamics space-charge effects their compensation, stochastic cooling, several other experiments. In this article, we present design...
Abstract Construction of an e + - Higgs factory has been identified as a major goal for particle physics. Such collider will offer precise measurements the bosons couplings to other particles. A extendable in energy can also establish self-coupling, measure coupling top quark, and expand reach probe new phenomena. We propose strategy energy-extendable based on linear accelerator technology. This offers compact cost-effective design that could be realized project US. The core technologies...
Integrable systems appeared in physics long ago at the onset of classical dynamics with examples being Kepler's and other famous problems. Unfortunately, majority nonlinear problems turned out to be nonintegrable. In accelerator terms, any 2D nonintegrable mapping produces chaotic motion a complex network stable unstable resonances. Nevertheless, proximity an integrable system full volume such is small. Thus, accelerators has potential introduce large betatron tune spread suppress...
We report on an experimental demonstration of electron cooling high-energy antiprotons circulating in a storage ring. In our experiments, cooling, well-established method at low energies ($<500\text{ }\text{ }\mathrm{MeV}/\mathrm{\text{nucleon}}$), was carried out new region beam parameters, requiring multi-MeV dc and unusual transport line. this Letter, we present the results longitudinal force measurements compare them with theoretical predictions.
This is the full high-level report of Snowmass 2021, most recent U.S. High Energy Physics (HEP) Community Planning Exercises, sponsored by Division Particles and Fields (DPF) American Physical Society (APS), with strong consultation from aligned APS Divisions Nuclear Physics, Astrophysics, Gravitational Beams. The goal these community studies, first which was in 1982, has been to identify important scientific questions HEP for following decade, an eye decade after that, facilities,...
Synchrotron motion with rf phase modulation was studied experimentally. Poincaré maps in the resonant precessing frame were obtained from experimental data and compared tori of Hamiltonian. Our revealed island structure longitudinal space. Experimental results for synchrotron excited by at third harmonic frequency are also reported.Received 28 June 1993DOI:https://doi.org/10.1103/PhysRevE.48.4678©1993 American Physical Society
The synchroton motion of a beam was tracked for the first time by digitizing phase signal from high bandwidth wall gap monitor relative to rf and momentum deviation with transverse position measurement in dispersion region. measured synchrotron tune as function amplitude agrees well theory. When stable angle modulated harmonically, response showed characteristics chaos bifurcations parametric resonant system. Manipulating system create islands space may offer applications future hadron...
Project X is a multi-megawatt proton facility being developed to support intensity frontier research in elementary particle physics, with possible applications nuclear physics and energy research, at Fermilab. The centerpiece of this program superconducting H- linac that will world leading programs long baseline neutrino experimentation the study rare processes. Based on technology shared International Linear Collider (ILC), provide multi-MW beams 60-120 GeV from Main Injector, simultaneous...
Abstract C 3 is an opportunity to realize e + - collider for the study of Higgs boson at √ s = 250 GeV, with a well defined upgrade path 550 GeV while staying on same short facility footprint [2,3]. based fundamentally new approach normal conducting linear accelerators that achieves both high gradient and efficiency relatively low cost. Given advanced state designs, key system requires technical maturation main linac. This paper presents staged towards demonstrate technology Direct (source...
In conventional low energy electron coolers, the beam is immersed in a continuous solenoid, which provides calm and tightly focused cooling section. While suitable for energies, continuity of accompanying magnetic field hardly realizable at relativistic energies. We consider possibility using an extended solenoid gun section only, applying lumped focusing rest transport line.
In the optics of charged particle beams, circular transverse modes can be introduced; they provide an adequate basis for rotation-invariant transformations. A group these transformations is shown to identical a canonical angular momentum preserving mappings. These mappings and are parametrized similar Courant-Snyder forms conventional uncoupled, or planar, case. The planar-to-circular reverse transformers (beam adapters) introduced in terms planar modes; their implementation on skew...
We propose the construction of, and describe in detail, a compact Muon Collider s-channel Higgs Factory.
C$^3$ is an opportunity to realize e$^+$e$^-$ collider for the study of Higgs boson at $\sqrt{s} = 250$ GeV, with a well defined upgrade path 550 GeV while staying on same short facility footprint. based fundamentally new approach normal conducting linear accelerators that achieves both high gradient and efficiency relatively low cost. Given advanced state designs, key system requires technical maturation main linac. This white paper presents staged towards demonstrate technology Direct...
Synchro-betatron coupling in a proton storage ring with electron cooling was studied experimentally by modulating transverse dipole field close to the synchrotron frequency. The combination of and modulation on oscillation is equivalent dissipative parametric resonant system. bunch observed split longitudinally into two pieces, or beamlets, converging toward attractors These phenomena might be important understanding effect ground vibration Superconducting Super Collider beam, power supply...
Small-angle multiple intrabeam scattering (IBS) emittance growth rates are normally expressed through integrals, which require a numeric evaluation at various locations of the accelerator lattice. In this paper, I demonstrate that IBS can be presented in closed-form expressions with help so-called symmetric elliptic integral. This integral evaluated numerically by very efficient recursive method employing duplication theorem. Several examples for smooth-lattice approximation, equal...
Experiments at the FLASH facility DESY have demonstrated that higher order modes induced in superconducting cavities can be used to provide a variety of beam and cavity diagnostics. The axes determined from orbit produces minimum power dipole HOM modes. phase amplitude obtain high resolution position information, monopole measure relative accelerator rf. For most accelerators, existing mode couplers necessary signals, downmix digitizing electronics are straightforward, similar those for...
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Synchrotron motion with an external rf voltage modulation was studied experimentally. Beam particles, in the presence of electron cooling, were observed to damp basins resonance islands, which produced by parametric due modulation. The measured phase amplitudes centers these islands found agree well theory.
Plasma wakefield acceleration is one of the main technologies being developed for future high-energy colliders. Potentially, it can create a cost-effective path to highest possible energies ${e}^{+}{e}^{\ensuremath{-}}$ or $\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}$ colliders and produce profound effect on developments physics. Acceleration in blowout regime, where all plasma electrons are swept away from axis, presently considered be primary choice beam acceleration. In this...
The 2021-22 High-Energy Physics Community Planning Exercise (a.k.a. ``Snowmass 2021'') was organized by the Division of Particles and Fields American Physical Society. Snowmass 2021 a scientific study that provided an opportunity for entire U.S. particle physics community, along with its international partners, to identify most important questions in High Energy following decade, eye decade after that, experiments, facilities, infrastructure, R&D needed pursue them. This summary report...