Sentences with phrase «field emission electron»

She operates Carnegie's one - of - a-kind JEOL 8530 field emission electron microprobe, equipped with CL, five WDS spectrometers, two EDS detectors, a cold trap for high precision carbon analysis and Probe for EPMA software.

«A novel approach for high performance field emission electron sources.»

Field emission electron sources catch scientists» attention due to its ability to provide intense electron beams that are about a thousand times denser than conventional thermionic cathode (like filaments in an incandescent light bulb).

Not exact matches

Arefiev co-authored the study, «Enhanced multi-MeV photon emission by a laser - driven electron beam in a self - generated magnetic field,» published May 2016 in the journal Physical Review Letters.

Under a strong electric field, the cathode emits tight, high - speed beams of electrons through its sharp nanotube tips — a phenomenon called field emission.

Depending on their size, so called near - fields (electromagnetic fields close to the particle surface) were induced by the laser pulses, resulting in a controlled directional emission of electrons.

In a paper recently published in Nanotechnology, a team led by Professor My Ali El Khakani, from the Energie Matériaux Télécommunications Research Centre of INRS (INRS - EMT), has reported an original approach for the development of novel graphenated - MWCNTs with enhanced field electron emission (FEE) properties.

The MWCNTs are excellent field electron emitters due to their stability and electronic conduction at room temperature, but there is still challenges to maximize their emission current at the lowest applied electric field possible.

Since the binding energies of the electrons are very small, the DC detector electric field used in the experiment was strong enough to ionize these Rydberg atoms, leading to the emission of low energy electrons.

Improved field - emission microscope images electron orbitals, confirming their theoretical shapes

To determine the structural and chemical composition of the soft tissues Lindgren collected and see if the fossil sea turtle did have a dark colored shell, the researchers subjected the sample to a selection of high - resolution analytical techniques, including field emission gun scanning electron microscopy (FEG - SEM), transmission electron microscopy (TEM), in situ immunohistochemistry, time - of - flight secondary ion mass spectrometry (ToF - SIMS), and infrared (IR) microspectroscopy.

This range is mostly free of interference from other radio sources, such as emission from electrons spiralling around galactic magnetic fields.

The first is the FIELDS experiment which will examine the different fields in the corona, including the Sun's magnetic field, electric fields, waves, plasma density, electron temperature, density fluctuations and radio emisFIELDS experiment which will examine the different fields in the corona, including the Sun's magnetic field, electric fields, waves, plasma density, electron temperature, density fluctuations and radio emisfields in the corona, including the Sun's magnetic field, electric fields, waves, plasma density, electron temperature, density fluctuations and radio emisfields, waves, plasma density, electron temperature, density fluctuations and radio emissions.

The observed Sgr A * emission is polarized and this means that it is produced by electrons gyrating around magnetic field lines in so called synchrotron process.

They then use photo emission electron microscopy at the Advanced Light Source to read out the magnetic structure from this region, demonstrating that the magnetism directly tracks the ferroelectric structure even though no magnetic fields were applied.

Here's one image from a field emission scanning electron microscope, showing what Hoover describes as features «interpreted as morphotypes of the cyanobacterium Calothrix spp.» (Journal of Cosmology):