37 citations · 103 across the 6 of their papers we have counts for
7 papers
Single-Sided Field-Free Line Generator Magnet for Multidimensional Magnetic Particle Imaging
Alexey Tonyushkin
Magnetic Particle Imaging (MPI) is an emerging medical imaging modality that is not yet adopted by clinical practice. Most of the working MPI prototypes including commercial-grade…
Towards a mechanical MPI scanner based on atomic magnetometry
Simone Colombo, Victor Lebedev, Alexey Tonyushkin +3
We report on our progress in the development of an atomic magnetometer (AM) based low-frequency magnetic particle imaging (MPI) scanner, expected to be free from Specific Absorptio…
Direct Imaging of Radio-Frequency Modes via Traveling Wave Magnetic Resonance Imaging
A. Tonyushkin, D. K. Deelchand, P. -F. Van de Moortele +2
We demonstrate an experimental method for direct 2D and 3D imaging of magnetic radio-frequency (rf) field distribution in metal-dielectric structures based on traveling wave (TW) m…
Traveling Wave MRI at 21.1 T: Propagation below Cut-off for Ultrahigh Field Vertical Bore System
Alexey A. Tonyushkin, Jose A. Muniz, Samuel C. Grant +1
At high magnetic field strengths (> 4 T), the propagation wave vector of the excitation field B1 can no longer be ignored as the wavelength becomes commensurate or smaller than the…
Macroscopic magnetic guide for cold atoms
Alexey Tonyushkin, Mara Prentiss
We demonstrate a macroscopic magnetic guide for cold atoms with suppressed longitudinal field curvature which is highly desired for atom interferometry. The guide is based on macro…
Demonstration of perfect coherence preservation for matter-waves perturbed by a delta-kicked rotor
A. Tonyushkin, S. Wu, M. Prentiss
We demonstrate perfect coherence preservation in an atom interferometer perturbed by kicks from off-resonant standing wave pulses. Under most conditions, the decoherence induced by…
Observation of coherence revival and fidelity saturation in a delta-kicked rotor potential
Saijun Wu, Alexey Tonyushkin, Mara G. Prentiss
We experimentally investigate the effect of atomic -kicked rotor potentials on the mutual coherence between wavepackets in an atom interferometer. The differential action of the…