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Position sensitive beam monitors are indispensable for the beam diagnostics in storage rings. Apart from their applications in the measurements of beam parameters, they can be used in non-destructive in-ring decay studies of radioactive ion…

Instrumentation and Detectors · Physics 2015-12-09 M. S. Sanjari , X. Chen , P. Hülsmann , Yu. A. Litvinov , F. Nolden , J. Piotrowski , M. Steck , Th. Stöhlker

Compatible schemes localize degrees of freedom according to the physical nature of the underlying fields and operate a clear distinction between topological laws and closure relations. For elliptic problems, the cornerstone in the scheme…

Numerical Analysis · Mathematics 2019-02-20 Jerome Bonelle , Alexandre Ern

A self-oscillating magnetometer based on the nonlinear magneto-optical rotation effect with separate modulated pump and unmodulated probe beams is demonstrated. This device possesses a bandwidth exceeding $1\khz$. Pump and probe are…

Atomic Physics · Physics 2009-11-13 J. M. Higbie , E. Corsini , D. Budker

Magnetoencephalography (MEG) conventionally operates within high-performance magnetic shields due to the extremely weak magnetic field signals from the measured objects and the narrow dynamic range of the magnetic sensors employed for…

Medical Physics · Physics 2024-03-20 Yosuke Ito , Hiroyuki Ueda , Takenori Oida , Takahiro Moriya , Akinori Saito , Motohiro Suyama

We introduce a functional gradient descent trajectory optimization algorithm for robot motion planning in Reproducing Kernel Hilbert Spaces (RKHSs). Functional gradient algorithms are a popular choice for motion planning in complex…

Robotics · Computer Science 2016-01-15 Zita Marinho , Anca Dragan , Arun Byravan , Byron Boots , Siddhartha Srinivasa , Geoffrey Gordon

MRI-targeted biopsy has shown significant advantages over conventional random sextant biopsy, detecting more clinically significant cancers and improving risk stratification. However, needle targeting accuracy, especially in transperineal…

Robotics · Computer Science 2024-09-17 Zhanyue Zhao , Yiwei Jiang , Charles Bales , Yang Wang , Gregory Fischer

We study high-order harmonic generation (HHG) from aligned molecules in strong elliptically polarized laser fields numerically and analytically. Our simulations show that the spectra and polarization of HHG depend strongly on the molecular…

Atomic Physics · Physics 2021-05-19 F. J. Sun , C. Chen , W. Y. Li , X. Liu , W. Li , Y. J. Chen

Magnetic interaction between a weighing sample and an external magnetic field allows to measure characteristics of magnetic field (a sample with known magnetic characteristics), as well as the magnetic properties of a sample (a known…

Aims. We aim to develop a fast and consistent extrapolation method to model multiple layers of the solar atmosphere. Methods. The new approach combines the magnetohydrostatic (MHS) extrapolation which models the solar low atmosphere in a…

Solar and Stellar Astrophysics · Physics 2022-02-02 Xiaoshuai Zhu , Thomas Wiegelmann

RADES (Relic Axion Detector Exploratory Setup) is a project with the goal of directly searching for axion dark matter above the $30 \mu$eV scale employing custom-made microwave filters in magnetic dipole fields. Currently RADES is taking…

We present a study of the relative orientation between the magnetic field and elongated cloud structures for the $\rho$ Oph A and $\rho$ Oph E regions in L1688 in the Ophiuchus molecular cloud. Combining inferred magnetic field orientation…

The mapping of the Galactic Magnetic Field (GMF) in three dimensions is essential to comprehend various astrophysical processes that occur within the Milky Way. This study endeavors to map the GMF by utilizing the latest MM2 technique, the…

Astrophysics of Galaxies · Physics 2023-07-12 Yue Hu , Alex Lazarian

Nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) suffer from inherently low sensitivity due to the weak thermal polarization of nuclear spins. Parahydrogen-induced polarization (PHIP) offers a powerful route to enhance…

Instrumentation and Detectors · Physics 2025-10-28 Yenal Gökpek , Jan-Bernd Hövener , Andrey N. Pravdivtsev

Fabrication, characterization and comparison of gold and graphene micro- and nano-size Hall sensors for room temperature scanning magnetic field microscopy applications is presented. The Hall sensors with active areas from 5 $\mu$m down to…

Femtosecond laser micromachining (FLM) fabricated waveguides inherently form elliptical cores due to differences in focal spot size and the Rayleigh range of the microscope objective. Consequently, it is essential to study their propagation…

Optics · Physics 2026-03-25 Prajal Chettri , Shailesh Srivastava

The technology of magnetic resonance imaging is developing towards higher magnetic fields to improve resolution and contrast. However, whole-body imaging at 7 T or even higher fields remains challenging due to wave interference, tissue…

Applied Physics · Physics 2020-01-29 G. Solomakha , J. T. Svejda , C. van Leeuwen , A. Rennings , A. J. Raaijmakers , S. Glybovski , D. Erni

Ultra-Low Field (ULF) MRI scanners offer a portable and cost-effective alternative to conventional MRI systems, but require careful calibration to compensate for reduced magnetic field strength and signal quality. In this paper, we present…

Medical Physics · Physics 2025-05-01 Jonathan W. Morris

Current interstitial techniques of tumor ablation face challenges that ultrasound technologies could meet. The ablation radius and directionality of the ultrasound beam could improve the efficiency and precision. Here, a 9gauge…

Classical Physics · Physics 2025-11-07 Thomas Biscaldi , Romain l'Huillier , Laurent Milot , W Apoutou N'Djin

Maximizing the grating efficiency is a key goal for the first light instrument IRIS (Infrared Imaging Spectrograph) currently being designed to sample the diffraction limit of the TMT (Thirty Meter Telescope). Volume Phase Holographic (VPH)…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Shaojie Chen , Elliot Meyer , Shelley A. Wright , Anna M. Moore , James E. Larkin , Jerome Maire , Etsuko Mieda , Luc Simard

Diffusion magnetic resonance imaging (dMRI) is pivotal for probing the microstructure of the rapidly-developing fetal brain. However, fetal motion during scans and its interaction with magnetic field inhomogeneities result in artifacts and…

Medical Physics · Physics 2025-04-07 Haykel Snoussi , Davood Karimi , Onur Afacan , Mustafa Utkur , Ali Gholipour