Results 11 to 20 of about 5,746 (226)

MPS and ACS with an atomic magnetometer [PDF]

International Journal on Magnetic Particle Imgaging, 2016
We show that a single atomic magnetometer in a magnetically unshielded environment can be used to perform magnetic particle spectroscopy (MPS) and AC susceptometry (ACS) on liquid-suspended magnetic nanoparticles. We demonstrate methods allowing a simultaneous recording of M(H) and dM/dH(H) dependences of samples containing down to 1 $μ$g of iron.
Colombo Simone, Lebedev Victor, Grijic Zoran, Dolgoskiy Vladimir, Weis Antoine   +4 more
openaire   +4 more sources

EDGE DETECTION IN ATOMIC MAGNETOMETER IMAGING

Journal of the Siena Academy of Sciences, 2019
We present the results of an edge detection algorithm applied on Electromagnetic Induction Imaging provided by an Atomic radio-frequency Magnetometer operating in an unshielded environment and at room temperature. Atomic Magnetometers have been already used for Imaging Techniques in the last few years, but the image reconstruction and the object ...
Papi, N., Cali, E., Marinelli, Carmela, Mariotti, Emilio, Millucci, Vincenzo   +4 more
openaire   +4 more sources

Subpicotesla scalar atomic magnetometer with a microfabricated cell [PDF]

Journal of Applied Physics, 2019
We demonstrated a scalar atomic magnetometer using a microfabricated Cs vapor cell. The atomic spin precession is driven by an amplitude-modulated circularly-polarized pump laser resonant on the D1 transition of Cs atoms and detected by an off-resonant linearly-polarized probe laser using a balanced polarimeter setup.
Zhang, Rui, Dyer, Terry, Brockie, Nathan, Parsa, Roozbeh, Mhaskar, Rahul   +4 more
openaire   +5 more sources

Atomic magnetometer for human magnetoencephalograpy. [PDF]

, 2010
We have developed a high sensitivity (
Schwindt, Peter, Johnson, Cort N.
openaire   +3 more sources

Ultrasensitive SERF atomic magnetometer with a miniaturized hybrid vapor cell. [PDF]

Microsyst Nanoeng
The chip-scale hybrid optical pumping spin-exchange relaxation-free (SERF) atomic magnetometer with a single-beam arrangement has prominent applications in biomagnetic measurements because of its outstanding features, including ultrahigh sensitivity, an ...
Ma Y, Chen Y, Yu M, Wang Y, Lu S, Guo J, Luo G, Zhao L, Yang P, Lin Q, Jiang Z.   +10 more
europepmc   +2 more sources

Study on the measurement of magnetic vector potentials using an optically pumped atomic magnetometer [PDF]

, 2023
岩手大学博士（工学）原著論文 Differential behavior of magnetic field and magnetic vector potential in an optically pumped Rb atomic magnetometer, Yuya Shoji, Masahiro Daibo, AIP Advances, 13(2), 025127, 2023doctoral ...
正路, 裕也, SHOJI, Yuya
core   +1 more source

Vector Atomic Magnetometer with Free Induction Decay Detection Based on a Microfabricated Vapor Cell. [PDF]

Micromachines (Basel)
Atomic magnetometers are highly sensitive instruments widely used for measurements of weak magnetic field. Extracting vector information while maintaining high-precision scalar detection has become the trend in atomic magnetometer development.
Jiang P, Li Q, Qin J, Jiang Z.
europepmc   +2 more sources

Magnetometer-Detected Nuclear Magnetic Resonance of Photochemically Hyperpolarized Molecules

, 2023
Photochemically induced dynamic nuclear polarization (photo-CIDNP) enables nuclear spin ordering by irradiating samples with light. Polarized spins are conventionally detected via high-field chemical-shift-resolved NMR (above 0.1 T).
Michael C. D. Tayler (11881345), Danila A. Barskiy (1324872), Román Picazo-Frutos (14299072), Yinan Hu (3312858), Kirill F. Sheberstov (10790061), James Eills (6831212), Sven Bodenstedt (11881339), Oleg Tretiak (6872615), Dmitry Budker (1984843), Liubov Chuchkova (10790064), Jacopo de Santis (16641436)   +10 more
core   +2 more sources

Multi-sensor magnetoencephalography with atomic magnetometers [PDF]

Physics in Medicine and Biology, 2013
The authors have detected magnetic fields from the human brain with two independent, simultaneously operating rubidium spin-exchange-relaxation-free magnetometers. Evoked responses from auditory stimulation were recorded from multiple subjects with two multi-channel magnetometers located on opposite sides of the head.
Cort N, Johnson, P D D, Schwindt, M, Weisend   +2 more
openaire   +2 more sources

Repumping atomic media for an enhanced sensitivity atomic magnetometer

Optics Express, 2022
Atomic vapour magnetometers sense the local magnetic field strength by measuring the resulting precession rate of a well-defined quantum state. An essential prerequisite for this approach is a requirement to drive the media into this quantum state, which is frequently achieved via optical pumping.
Rujie Li, Christopher Perrella, André Luiten   +2 more
openaire   +2 more sources