Kyoko Makino
A5064041973- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Numerical Methods and Algorithms
- Particle physics theoretical and experimental studies
- Muon and positron interactions and applications
- Numerical methods for differential equations
- Superconducting Materials and Applications
- Neutrino Physics Research
- Quantum chaos and dynamical systems
- Particle Detector Development and Performance
- Model Reduction and Neural Networks
- Astrophysics and Cosmic Phenomena
- Advanced X-ray Imaging Techniques
- Electron and X-Ray Spectroscopy Techniques
- Magnetic confinement fusion research
- Scientific Research and Discoveries
- Computational Physics and Python Applications
- Astro and Planetary Science
- Digital Filter Design and Implementation
- Advanced Text Analysis Techniques
- Advanced Electron Microscopy Techniques and Applications
- Spacecraft Dynamics and Control
- Gyrotron and Vacuum Electronics Research
- Parallel Computing and Optimization Techniques
- Atomic and Subatomic Physics Research
Michigan State University
2013-2023
Illinois Institute of Technology
2015
Toshiba (Japan)
1995-2014
Fermi National Accelerator Laboratory
2009
University of California, Riverside
2009
Dynamic Systems (United States)
2008
Mitsubishi Research Institute (Japan)
2005
University of Illinois Urbana-Champaign
2002-2004
Kuban State Technological University
2004
St Petersburg University
2004
A new experiment is described to detect a permanent electric dipole moment of the proton with sensitivity $10^{-29}e\cdot$cm by using polarized "magic" momentum $0.7$~GeV/c protons in an all-electric storage ring. Systematic errors relevant are discussed and techniques address them presented. The measurement sensitive physics beyond Standard Model at scale 3000~TeV.
We describe the status of our effort to realize a first neutrino factory and progress made in understanding problems associated with collection cooling muons towards that end. summarize physics can be done factories as well intense cold beams muons. The potential muon colliders is reviewed, both Higgs Factories compact high energy lepton colliders. timescale research development reviewed latest designs channels including promise ring coolers achieving longitudinal transverse simultaneously....
A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, tune-defined as number of precessions per turn-is given by ν(s)=γG (γ Lorentz factor, G gyromagnetic anomaly). At 970 MeV/c, deuteron spins coherently precess at a frequency ≈120 kHz in Cooler Synchrotron COSY. The deduced from up-down asymmetry deuteron-carbon scattering. time interval 2.6 s, was determined with precision order 10^{-8}, 1×10^{-10} for continuous 100 s accelerator cycle. This...
We observe a deuteron beam polarization lifetime near 1000 s in the horizontal plane of magnetic storage ring (COSY). This long spin coherence time is maintained through combination bunching, electron cooling, sextupole field corrections, and suppression collective effects current limits. record required for search an intrinsic electric dipole moment on at statistical sensitivity level approaching 10^{-29} e cm.
The verified integration of ranges initial conditons through ODEs faces two major challenges, namely the precise representation flow over short term, and avoidance unfavorable buildup errors in long term. Taylor model approach is very well suited to overcome problems term representation. In this paper we discuss a method based on preconditioning that stabilizes long-term evolution flow. Examples performance comparisons other approaches are given.
A frontier challenge in implementing femtosecond electron microscopy is to gain precise optical control of intense beams mitigate collective space charge effects for significantly improving the throughput. Here, we explore flexible uses an RF cavity as a longitudinal lens high-intensity beam column condensing both temporally and spectrally, relevant design ultrafast microscopy. Through introduction novel atomic grating approach characterization bunch phase optics, elucidate principles...
The proposed method exploits charged particles confined as a storage ring beam (proton, deuteron, possibly $^3$He) to search for an intrinsic electric dipole moment (EDM) aligned along the particle spin axis. Statistical sensitivities could approach 10$^{-29}$ e$\cdot$cm. challenge will be reduce systematic errors similar levels. adjusted preserve polarisation, initially parallel velocity, times in excess of 15 minutes. Large radial fields, acting through EDM, rotate polarisation from...
Taylor models combine the advantages of numerical methods and algebraic approaches efficiency, tightly controlled recourses, ability to handle very complex problems with symbolic approaches, in particularly be rigorous allow treatment functional dependencies instead merely points. The resulting differential calculus involving an algebra differentiation integration is amenable for study ODEs PDEs based on fixed point from analysis. We describe development tools determine enclosures flows...
Using a multilevel fast multipole method, coupled with the shadow imaging of femtosecond photoelectron pulses for validation, we quantitatively elucidate photocathode, space charge, and virtual cathode physics, which fundamentally limit spatiotemporal spectroscopic resolution throughput ultrafast electron microscope (UEM) systems. We present simple microscopic description to capture nonlinear beam dynamics based on two-fluid picture an unexpected dominant role image potential pinning in...
Recently there has been renewed interest in the influence of fringe fields on particle dynamics, due to studies that revealed their importance some cases, as, for example, proposed Neutrino Factory and muon colliders. In this paper, we present a systematic study generic field effects. Using as an example lattice Factory, show dynamics particles at all orders, starting with linear motion. It is found widely used sharp cutoff approximation leads divergences regardless specific fall-off shape...