Bragg gravity-gradiometer using the 1S0–3P1 intercombination transition of 88Sr [PDF]
New Journal of Physics, 2018 We present a gradiometer based on matter-wave interference of alkaline-earth-metal atoms, namely ^88 Sr. The coherent manipulation of the atomic external degrees of freedom is obtained by large-momentum-transfer Bragg diffraction, driven by laser fields ...
R P del Aguila +5 more
doaj +3 more sources
A microfabricated optically-pumped magnetic gradiometer [PDF]
Applied Physics Letters, 2017 We report on the development of a microfabricated atomic magnetic gradiometer based on optical spectroscopy of alkali atoms in the vapor phase. The gradiometer, which operates in the spin-exchange relaxation free regime, has a length of 60 mm and cross sectional diameter of 12 mm, and consists of two chip-scale atomic magnetometers which are ...
Sheng, Dong +5 more
exaly +4 more sources
Drone-Borne Magnetic Gradiometry in Archaeological Applications [PDF]
SensorsThe use of magnetometers arranged in a gradiometer configuration offers a practical and widely used solution, particularly in archaeological applications where the sources of interest are generally shallow.
Filippo Accomando, Giovanni Florio
doaj +2 more sources
Magnetoencephalography Source Connectivity Pipeline Reveals Long-Range Connectivity in Audio-Visual Integration. [PDF]
Eur J NeurosciThis study presents a pipeline for analysing source‐level brain connectivity in MEG data, focusing on audio‐visual integration in native Chinese speakers and a control group. Results indicate a crucial role of Delta band connectivity, with native speakers showing distinct pathways between prefrontal and occipital, and also interhemispheric brain areas,
Bornfleth H +6 more
europepmc +2 more sources
Optimization of a Third-Order Gradiometer for Operation in Unshielded Environments [PDF]
, 2005 The optimum geometry of a third-order gradiometer for operation in unshielded environments is discussed. The optimization result depends on the specific signal and noise conditions. The fetal heart is considered as an example of the signal source.
Brake, H.J.M. ter +3 more
core +12 more sources
Picoammeters Based on Gradiometric Superconducting Quantum Interference Devices
Applied Sciences, 2022 High-sensitivity ac current sensors based on a superconducting quantum interference device have been designed, fabricated and characterized. In particular, double-washer schemes in either parallel or series configurations have been considered.
Antonio Vettoliere, Carmine Granata
doaj +1 more source
An integrated calibration method for the cross-shaped magnetic gradiometer
AIP Advances, 2023 The measurement accuracy of a magnetic gradiometer relies on magnetometer consistency, measurement accuracy, and assembly technology. The traditional methods calibrate measurement error, misalignment error, and the interference magnetic field ...
Jianfei Ma +3 more
doaj +1 more source
Analysis of the Feasibility of UAS-Based EMI Sensing for Underground Utilities Detection and Mapping
Remote Sensing, 2022 This paper investigates the feasibility of using a linear current sensing (LCS) technique integrated on an unmanned aerial system (UAS) for detecting and mapping underground infrastructure rapidly and cost-effectively.
Caylin A. Hartshorn +5 more
doaj +1 more source
MEG Evidence of Concurrent Bilateral and Hemisphere-Specific Developmental Patterns in Auditory Cortex. [PDF]
Dev SciABSTRACT Children demonstrate remarkably different temporal characteristics, as well as higher interindividual variability, in the cortical auditory responses as compared with adults. The detailed dynamics at the level of underlying current generators are, however, not established.
Parviainen T +3 more
europepmc +2 more sources
Ultra Sensitive Geomagnetic Monitoring at Eilat Geophysical Observatory
Data Science Journal, 2011 Long-term precise magnetic observations are being carried out at the Eilat test site as a part of active tectonic fault multi-sensor geophysical monitoring.
B Ginzburg, B Shirman
doaj +1 more source