O. Javakhishvili
A5056303425- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Mechanical and Optical Resonators
- Geophysical and Geoelectrical Methods
- Particle Detector Development and Performance
- Magnetic confinement fusion research
- Magnetic properties of thin films
- Computational Physics and Python Applications
- Quantum, superfluid, helium dynamics
- Advanced Machining and Optimization Techniques
- Surface Roughness and Optical Measurements
- Cold Atom Physics and Bose-Einstein Condensates
- Scientific Research and Discoveries
- Nuclear Physics and Applications
- Experimental and Theoretical Physics Studies
- Particle accelerators and beam dynamics
- Manufacturing Process and Optimization
- Quantum and Classical Electrodynamics
- Non-Destructive Testing Techniques
- Advanced Data Storage Technologies
- Quantum and electron transport phenomena
- Particle physics theoretical and experimental studies
- Advancements in Photolithography Techniques
Agricultural University of Georgia
2020-2024
Forschungszentrum Jülich
2020
Based on the notion that local dark-matter field of axions or axionlike particles (ALPs) in our Galaxy induces oscillating couplings to spins nucleons and nuclei (via electric dipole moment latter and/or paramagnetic axion-wind effect), we establish feasibility a new method search for ALPs storage rings. previous work allows us maintain in-plane polarization stored deuteron beam few hundred seconds, perform first proof-of-principle experiment at Cooler Synchrotron (COSY) scan momenta near...
This paper presents the successful application of a phase-lock feedback system to maintain resonance condition radio frequency (rf) spin rotator (specifically, an rf Wien filter) with respect 120 kHz precession in Cooler Synchrotron (COSY) storage ring. Real-time monitoring and filter signal allows relative phase between two be stabilized at arbitrary setpoint. The compensates for deviations by adjusting and/or as needed. With this method, variation demand standard deviation...
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...
We investigated coherent betatron oscillations of a deuteron beam in the storage ring cooler synchrotron and ring, excited by detuned rf Wien filter (WF). The were detected conventional position monitors. With currently available apparatus, we show that oscillation amplitudes down to $1\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ can be detected. interpretation response stored WF is based on simulations evolution lattice realistic time-dependent 3D field maps WF. Future measurements electric...
A calorimetric polarimeter based on inorganic LYSO scintillators is described. It has been designed for use in a storage ring to search electric dipole moments (EDM) of charged particles such as the proton and deuteron. Its development first was Cooler Synchrotron (COSY) at Forschungszentrum Jülich with 0.97 GeV/c polarized deuterons, particle energy suitable an EDM search. The requires high efficiency, large analyzing power, stable operating characteristics. With typical beam momenta about...
This project exploits charged particles confined as a storage ring beam (proton, deuteron, possibly $^3$He) to search for an intrinsic electric dipole moment (EDM, $\vec d$) aligned along the particle spin axis. Statistical sensitivities can approach $10^{-29}$~e$\cdot$cm. The challenge will be reduce systematic errors similar levels. adjusted preserve polarization, initially parallel velocity, times in excess of 15 minutes. Large radial fields, acting through EDM, rotate polarization ($\vec...
High-frequency driven resonant spin rotators are routinely used as standard instruments in polarization experiments particle and nuclear physics. Maintaining the continuous exact parametric resonance condition of equality rotator precession frequency during operation is one challenges. We present a detailed analytical description effects detuning on precessing vertical in-plane components polarization. An important part formalism presented here consideration experimentally relevant...
Based on the notion that local dark-matter field of axions or axion-like particles (ALPs) in our Galaxy induces oscillating couplings to spins nucleons and nuclei (via electric dipole moment latter and/or paramagnetic axion-wind effect), we establish feasibility a new method search for ALPs storage rings. previous work allows us maintain in-plane polarization stored deuteron beam few hundred seconds, performed first proof-of-principle experiment at Cooler Synchrotron COSY scan momenta near...
Abstract The search for electric dipole moments (EDM) of elementary particles is one the hot topic in contemporary particle physics. method to measure charged EDMs (p,d) observe time development a polarized beam dedicated storage ring (srEDM). This requires new polarimeter with special target system which under at COSY-Juelich. detector consists two layers: plastic scintillator ?E and an inorganic LYSO crystal as calorimeter. Both systems are readout by multi-pixel SiPM (silicon photo...
Radiofrequency-driven resonant spin rotators are routinely used as standard instruments in polarization experiments particle and nuclear physics. Maintaining the continuous exact parametric spin-resonance condition of equality rotator precession frequency during operation constitutes one challenges. We present a detailed analytic description impact detuning resonance on vertical in-plane precessing components polarization. An important part formalism presented here is consideration...
In polarization experiments at storage rings, one of the challenges is to maintain spin-resonance condition a radio-frequency spin rotator with spin-precessions orbiting particles. Time-dependent variations magnetic fields ring elements lead unwanted precession frequency. We report here on solution this problem by shielding (or masking) bunches stored in from high-frequency rotator, so that masked pilot bunch acts as co-magnetometer for other signal bunch, tracking fluctuations time scale...