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Atomic Magnetometer Could Have Biomedical, Navigation Applications

By Guest PostOctober 31, 2018Healthatomic magnetometer, brain, magnetic field, robert wyllie, rubidium atoms, traumatic brain injury

Measuring very small changes in the brain’s magnetic fields could lead to a better understanding of maladies such as epilepsy, post-traumatic stress disorder, and traumatic brain injury, but the equipment used for such measurements today is bulky and expensive. Scientists and engineers at the Georgia Tech Research Institute (GTRI) want to address that issue by creating a new generation of atomic magnetometers based on clouds of rubidium atoms. (more…)

Research resolves a debate over ‘killer electrons’ in space

By Guest PostNovember 13, 2016Scienceearth, killer electrons, magnetic field, navigation satellite, particle radiation, Space, space environment, van allen belts, yuri shprits

Findings by UCLA-led team hold promise for new ways to protect telecommunication and navigation satellites

New findings by a UCLA-led international team of researchers answer a fundamental question about our space environment and will help scientists develop methods to protect valuable telecommunication and navigation satellites. The research is published in the journal Nature Communications. (more…)

Consistency of Earth’s magnetic field history surprises scientists

By Guest PostFebruary 8, 2016Scienceconsistency, david evans, earth, geodynamo, magnetic field, magnetic polarity, peter driscoll, superchron

Washington, D.C.—Earth’s magnetic field is generated by the motion of liquid iron in the planet’s core. This “geodynamo” occasionally reverses its polarity—the magnetic north and south poles swap places. The switch occurs over a few thousand years, and the time between reversals can vary from some tens of thousands to tens of millions of years. (more…)

Scientists’ discovery of zebra stripes in space resolves a half-century mystery

By Guest PostSeptember 25, 2015Scienceequatorial noise, high energy particles, magnetic field, plasma waves, radiation belts, russell noise, van allen belts

Study by UCLA researchers and others could explain mysterious plasma waves in space

In the 1960s, NASA launched six satellites to study the Earth’s atmosphere, magnetosphere and the space between Earth and the moon. Using observations from those satellites, Christopher Russell, a UCLA graduate student at the time, detected mysterious plasma waves in the Van Allen radiation belts, the donut-shaped rings surrounding the Earth that contain high-energy particles trapped by the planet’s magnetic field. (more…)

A lab with a magnetism all its own

By Guest PostFebruary 5, 2015Sciencealbertsons companies, biped is anthropomorphic, biped robot, earth, human balancing act, human like balance, luftreinhalteprogramm, luftschadstoff, luis sentis, magnetic field, magnetometer, measure, radiocarbon dating, robot mercury, svenja schulze, whole body balance

Ariana Fernandez and her magnetometer have a terrific view of Peru.

Admittedly, it’s no postcard image. Fernandez, a senior majoring in archaeological studies, goes in more for soil samples than scenic vistas. Yet with her bits of burnt earth and some world-class technology, she sees South America’s past, present, and geophysical future in stunning detail. (more…)

Researchers Integrate Single-Crystal BFO onto a Silicon Chip, Open Door to Smart Devices

By Guest PostDecember 1, 2013Sciencebismuth ferrite, data, electronic functions, jay narayan, john prater, magnetic field, magnetic field strength, north Carolina, s rao, silicon chip, single crystal bfo, smart devices, state university, substrate

Researchers from North Carolina State University have for the first time integrated a material called bismuth ferrite (BFO) as a single crystal onto a silicon chip, opening the door to a new generation of multifunctional, smart devices.

BFO has both ferromagnetic and ferroelectric properties, meaning that it can be magnetized by running an electric current through the material. Potential applications for BFO include new magnetic memory devices, smart sensors and spintronics technologies. (more…)

Diamond Imperfections Pave the Way to Technology Gold

By Guest PostNovember 23, 2013Scienceadvanced technology, berkeley lab, combination of theory, creation of qubits, data, dephasing, detection, diamond defects, Diamond Imperfections, diamond impurities, dmitry budker, electronic dynamic, electronic spectroscopy, electronic state phenomena, graham fleming, magnetic field, magnetometry, nanophotonics, nanoscale, nitrogen vacancy, non radiative relaxation, NV center, quantum information, quantum information processing, quantum mechanical effects, quantum spin, relaxation, spectroscopic signals, spin addressing, Technology Gold, Thomas Oliver, timescale, vanessa huxter, Vibrational, vibrational coherences

Berkeley Study Provides Unprecedented Details on Ultrafast Processes in Diamond Nitrogen Vacancy Centers

From supersensitive detections of magnetic fields to quantum information processing, the key to a number of highly promising advanced technologies may lie in one of the most common defects in diamonds. Researchers at the Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley have taken an important step towards unlocking this key with the first ever detailed look at critical ultrafast processes in these diamond defects. (more…)

A shot in the dark: Detector at UW on the hunt for dark matter

By Guest PostNovember 9, 2013Scienceaxion, dark matter, dark matter experiment, detector at uw, elementary particle, geneva, gravitational glue, gravitationally to matter, gray rybka, higgs boson, hunt, Large Hadron Collider, leslie rosenberg, magnetic field, microwave photons, milky way galaxy, particle physics, quantum chromodynamics, sensitive microwave receiver, switzerland, theory, university of washington

Leslie Rosenberg and his colleagues are about to go hunting. Their quarry: A theorized-but-never-seen elementary particle called an axion.

The search will be conducted with a recently retooled, extremely sensitive detector that is currently in a testing and shakeout phase at the University of Washington’s Center for Experimental Nuclear Physics and Astrophysics. (more…)

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