Electron beam. Medical search. Frequent questions

He shares the results of his electron-beam lithography experiments in his latest video (embedded below). (hackaday.com)
In e-beam lithography, or EBL, shapes are drawn onto a wafer using an electron beam in a vacuum chamber. (hackaday.com)
These e-beam lithography experiments follow on from [Zach]'s earlier research using lasers . (hackaday.com)
Electron beam lithography (EBL) is a method for creating ultra-fine, nanometer-sized structures in modern nanotechnology. (joanneum.at)
Of course when your garage contains a scanning electron microscope, the definition of weird can include experimenting with electron-beam lithography , resulting in tiny images etched into silicon. (hackaday.com)
His system is currently capable of resolving down to 100 nm, while commercial electron beam lithography can get down to 5 nm or so. (hackaday.com)
The JBX-9500FS is an electron beam lithography system featuring a spot beam, Vector scan, and a step and repeat stage. (jeolusa.com)
Vistec Electron Beam GmbH is a leader in the design and manufacture of electron-beam lithography systems. (vistec-semi.com)
The company provides Variable Shaped Beam lithography systems and is located in Jena, Germany. (vistec-semi.com)
Two scanning electron beam lithography (SEBL) patterning processes have been developed, one positive and one negative tone. (mit.edu)
An important issue in electron-beam (e-beam) lithography is to minimize the critical dimension (CD) error and line edge roughness (LER). (auburn.edu)
However, we have found a method to perform electron beam lithography (EBL) using only non-polar solvents [Lamers 2022]. (lu.se)

He then placed the wafer into the electron microscope and used it to scan an image. (hackaday.com)
Zach] explains the whole process in detail in his video, including how he tuned all the parameters like resist thickness, beam strength, exposure time and development time, as well as the software tricks needed to persuade the microscope to function as a litho machine. (hackaday.com)
The EBL is based on the conventional scanning electron microscope, but rather than scanning over the sample line by line as is the case for imaging, the beam path is defined by the structural geometry. (joanneum.at)
This is where the main advantage of the process comes into its own: a real-time analysis analogous to a scanning electron microscope that monitors each stage in the manufacturing process meticulously. (nanowerk.com)
Vistec Electron Beam´s roots go back to the 1950´s when the company was part of Carl Zeiss Jena where the first electron microscope was developed. (vistec-semi.com)
This manuscript demonstrates the susceptibility of ultrathin Mobil Five (MFI) zeolite nanosheets to low-keV electron beam damage in a scanning electron microscope (SEM). (nist.gov)
The FEI Helios Nanolab DualBeam Focused Ion Beam/Scanning Electron Microscope (SEM), equipped with an energy dispersive X-ray spectroscopy detector (EDX), combines important high-resolution microscopy tools. (pnnl.gov)
A laser pulse is shaped by a spatial light modulator and interacts with a counter-propagating, synchronized pulsed electron beam in a modified scanning electron microscope. (bionity.com)
In the future, parts of your electron microscope may be made from light. (bionity.com)
This dissertation presents a method to measure the CD and LER from scanning electron microscope (SEM) images, two methods to estimate the CD and LER, i.e., modeling the e-beam lithographic process and utilizing a neural network (NN), and the minimization results obtained based on the estimation. (auburn.edu)
The infrastructure consists of three transmission electron microscopes (TEMs) and one scanning electron microscope (SEM). (lu.se)
Hitachi HF-3300 ETEM - environmental transmission electron microscope, specially designed to study the growth of III-V semiconductor nanostructures. (lu.se)
This historic 1965 image depicted Centers for Disease Control (CDC) laboratorian, Carey Callaway, seated at what at the time, was a new transmission electron microscope (TEM). (cdc.gov)
The electron microscope is capable of revealing details that are tens of thousands of times smaller than can be seen, by even the highest quality light microscope. (cdc.gov)
Materials to be viewed under an electron microscope may require processing to produce a suitable sample. (lu.se)
There are two types of electron microscopes: (1) Transmission electron microscope (TEM), and (2) Scanning electron microscope (SEM). (lu.se)
The microscope is also equipped with a retractable STEM detector (Scanning Transmission Electron Microscopy) that allows us to image thin, electron transparent samples with sub nanometer resolution. (lu.se)

Relativistic electron beams are streams of electrons moving at relativistic speeds. (wikipedia.org)
It has been suggested that relativistic electron beams could be used to heat and accelerate the reaction mass in electrical rocket engines that Dr. Robert W. Bussard called quiet electric-discharge engines (QEDs). (wikipedia.org)
Unlike a conventional laser that uses a gas or solid state gain medium, the FEL gain medium is a relativistic electron beam produced by a particle accelerator. (nps.edu)

Beam dose rates and characteristic beam doses are quantified at beam energies from 15 keV to 30 keV using an on-axis transmission electron detector to measure signal decay times in diffraction patterns and by underfocusing to enable spot size measurement. (nist.gov)
SPICE features a permanent rare-earth magnetic lens to collect and direct internal conversion electrons emitted from nuclear reactions to a thick, highly segmented, lithium-drifted silicon detector. (lu.se)
This Small Business Innovation Research Phase I project is to develop a secondary electron detector which can be co-axially mounted with a micro-focused ion beam. (sbir.gov)
This study compares the capabilities of a traditional EDS detector with a recently developed annular EDS detector when analyzing electron transparent and beam-sensitive NaCl particles on a TEM grid. (bvsalud.org)

A device generally used in a cathode-ray or camera tube to emit a stream of electrons moving at uniform velocity in a straight line. (photonics.com)
electron beam (e-beam) A stream of electrons emitted by a single source that move in the same direction and at the same speed. (photonics.com)
The beam - a concentrated, highly charged stream of electrons - is generated by accelerators capable of producing continuous or pulsed beams. (sterigenics.com)

electron-beam evaporation A method of thin-film deposition in which electrons boiled off a heated cathode are used to melt the coating material. (photonics.com)
H and SiO 2 films were deposited via PECVD and an electron-beam evaporation technique, respectively. (hindawi.com)
H SARC by electron-beam evaporation. (hindawi.com)

Images acquired in transmission electron microscopes can be distorted for various reasons such as e.g. aberrations of the lenses of the imaging system or inaccuracies of the image recording system. (uni-bremen.de)
Our experiments pave the way for wavefront shaping in pulsed electron microscopes with thousands of programmable pixels. (bionity.com)

The effects of the electron beam parameters on X-ray absorption images are discussed, along with experimental demonstrations of the technique using the Compact Laser-Compton X-ray Source at LLNL. (aps.org)

preparation of ultrathin samples and materials for other analysis-e.g, preparation of selected regions for transmission electron microscopy (TEM) and atomic probe tomography (APT). (pnnl.gov)
Helios NanoLab allows for sample preparation by FIB for scanning/transmission electron microscopy (S/TEM) imaging or fabrication purposes, such as welding to a TEM sample grid without breaking the vacuum within the instrument. (pnnl.gov)
Transmission electron microscopy reveals that the relaxation is localized in the buffer layer, leaving the epitaxial growth in the quantum-well region coherent. (rsc.org)
Electron beam re-fusion of arc welds resulted in transverse properties comparable to those obtained by electron beam welding gun with a transmission of 90 under vacuum welding conditions. (dtic.mil)
Transmission electron microscopy uses a beam of electrons, which is passed through an extremely thin specimen, and on to an imaging surface, at which point the image becomes visible. (cdc.gov)

Historically, more attention has been paid to the transverse dynamics of beams. (umd.edu)
This enables imprinting on demand transverse phase shifts to the electron wave, enabling unprecedented control over electron beams. (bionity.com)
As pointed out by the lead author of the study, Marius Constantin Chirita Mihaila: "We are writing with the laser beam in the transverse phase of the electron wave. (bionity.com)

Usually, static electromagnetic fields are used to steer and focus the electron beams. (bionity.com)
The quadrupoles and solenoids collimate and focus the electron beam. (nps.edu)

To study longitudinal dynamics in intense beams, experiments were conducted using the University of Maryland Electron Ring, a 10 keV, 100 mA electron transport system. (umd.edu)
These experiments concentrated on space charge driven changes in beam length in parabolic and rectangular beams, beam density and velocity modulation, and space charge wave propagation. (umd.edu)
Results of these experiments are presented here, along with a theoretical framework for understanding the longitudinal dynamics of intense beams. (umd.edu)
This technique, combined with a spot size measurement of the beam, can be used to measure the emittance of electron bunches, and can be especially useful in LWFA experiments where conventional methods are unavailable. (aps.org)
In previous laser wakefield acceleration experiments, electron beam filamentation was observed due to the current filamentation instability, which occurred in laser-plasma interaction lengths greater than the laser depletion length [1]. (lancs.ac.uk)
Recent experiments using the HERCULES laser, with approximately 160TW, also showed the appearance of multiple electron beams observed consistently. (lancs.ac.uk)
Experiments performed with the high-contrast 0.7-J 35-fs Ti:sapphire laser at the Lund Laser Centre focused into a helium gas jet have produced quasi-monoenergetic electron beams with energies up to 150 MeV. (lancs.ac.uk)

Depending on the beam density, temperature and velocity, we get a critical condition for which the quadratic nonlinearity vanishes from the plasma system. (frontiersin.org)
Tokar and Gary (1984) presented a parametric survey and showed that the existence condition for the electron-acoustic waves is that the hot to cold electron temperature ratio ought to be larger than 10, and that the percentage of the hot electron component ought to be more than 20 percent of the total electron density. (frontiersin.org)
The second subband of the 2D state is shown to be occupied when the sheet electron density is relatively low as the higher subbands are confined by the (In,Al)As layers. (rsc.org)
During its conductive phase, a pseudospark discharge is able to generate a low energy electron beam with a higher combined current density and brightness compared with electron beams formed from any other known type of electron source. (strath.ac.uk)
The plasma wake is shown in alternating yellow for the absence of electrons and green for peaks in the electron density. (sflorg.com)
It does this because the fairly high density of loose electrons, bordered by an area from which they are largely absent, creates a boundary where the laser light moves differently on either side. (sflorg.com)
Under the best conditions of laser energy and plasma density, a beam with narrow-energy-spread component was produced on every shot with an energy stability of ~10% and a pointing stability of ~6 mrad. (lancs.ac.uk)
In detail, with a laser energy on focus of 1 J and a pulse temporal length (FWHM) of 40 fs, we obtained an electron plasma density of 10^19cm^-3, transversal dimensions in the range 5-15 mm (rms), energy up to 220 MeV and beam charge of the order of 10^2 pC. (infn.it)

The samples prepared using FIB are analyzed by high resolution surface and bulk sensitive electron capabilities including APT, secondary ion mass spectrometry, and TEM. (pnnl.gov)
Backscattered neutral atoms (and ions) and secondary electrons will be analyzed to give a measure both of surface element location and identity. (sbir.gov)
Beam damage is greatly reduced compared to secondary electron microscopy allowing its use on biological samples. (sbir.gov)
It has detectors for both secondary (in-lens and low angle) and backscattered electrons. (lu.se)
This makes it possible to study both the topography (secondary electrons) and detect contrast between areas with different atomic compositions (backscatter electrons), for example, the surface distribution of electron dense immuno-labels (nanogold or Quantum dots). (lu.se)

Beams in which Coulomb forces play the dominant role are known as space charge dominated, or intense. (umd.edu)
Intense beams are of great interest for heavy ion fusion, spallation neutron sources, free-electron lasers, and other applications. (umd.edu)
In this paper, a configuration is proposed to post-accelerate an electron beam extracted from a single-gap pseudospark discharge cavity in order to achieve high quality high energy intense electron beams. (strath.ac.uk)

Electron, photon or proton beams are used in radiotherapy for cancer treatment while each one may be used depending on depth and the location of tumor and normal tissues around the treatment target as well as economic issues. (scirp.org)
Depending on the position and depth of a tumor, electron, photon, mixed electron-photon, or proton beams may be used in radiation therapy. (scirp.org)

They are the lasing medium in free electron lasers to be used in atmospheric research conducted at entities such as the Pan-oceanic Environmental and Atmospheric Research Laboratory (PEARL) at the University of Hawaii and NASA. (wikipedia.org)

A 600-kW drip melting furnace at the ALTA Group, a Div. of Honeywell and a 5.4-MW hearth melter powered by eight electron guns (the largest EB melting furnace in the U.S.) at International Hearth Melting, Richland, Wash., were commissioned in the 1990s. (industrialheating.com)
Retech , a SECO/WARWICK Group division, has begun fabrication of a 5 Gun Electron Beam Hearth Melter for a North America-based returning partner. (secowarwick.com)

The project 'Voxel Based Material Design: Amalgamation of Additive Manufacturing and Scanning Electron Microscopy', AMELI for short, hopes to open up pioneering new possibilities for component manufacturing. (nanowerk.com)
JEOL's JAM-5200EBM Metal 3D Printer, a production ready Electron Beam Powder Bed Fusion (EB-PBF) additive manufacturing solution, has demonstrated the ability to meet the rigorous AMS7032 operational qualification (OQ) standards, while achieving the AMS7011 material requirements for Ti-6Al-4V alloy with post-deposition hot isostatic pressing (HIP). (jeolusa.com)

It consists of an emitting cathode and an anode, with an aperture for passage of some of the electrons. (photonics.com)
This demo features a cathode beam to explain the electromagnetic nature of electrons. (sargentwelch.com)
The cathode end features a phosphorous coating, which glows when exposed to electrons. (sargentwelch.com)

By exploring the features and functionalities of the frame grid beam tetrode, this article will shed light on how this particular type of electron tube can address these requirements effectively. (radiotubesupply.com)

The propagation of linear and nonlinear electron acoustic waves (EAWs) in an unmagnetized plasma, comprising dynamical inertial electrons, hot ( r , q ) distributed electrons, warm electron beam, and immobile ions is studied. (frontiersin.org)
As far as the electron pulse is concerned, the heavy, positively charged ions are stationary, but the loose electrons form a wake behind the electron pulse. (sflorg.com)
The electrons and negative backscattered ions can be energy and time analyzed to give a spatially resolved elemental image of the surface under examination. (sbir.gov)

They used electron energies of 16 and 20 MeV. (scirp.org)

The major advantage over laser technology is that the electron beam can move freely in the vacuum at speeds of up to 10000 metres per second, allowing it to be directed much more flexibly than a laser. (nanowerk.com)
The experimental setup consisted of a vacuum system, an electron-gun corkscrew assembly which produces a 110-eV beam with the desired delta-function velocity distribution, a measurement region where a microwave signal is injected onto the beam to measure wavelengths, and a velocity analyzer for measuring the axial electron velocity. (nasa.gov)
A high resolution Electron Gun Assembly EGA, a supporting high vacuum system, and the associated electronics for a self-contained, ground-based, Electron Beam Recorder EBR was developed. (dtic.mil)

Close cooperation with Jena´s Friedrich-Schiller-University, the Fraunhofer Institute for Optics and Precision Mechanics, the Ernst-Abbe-University of Applied Sciences in Jena, the Technical University Ilmenau as well as with companies like Jenoptik and Zeiss, provides excellent fundamentals for the prosperous development and further expansion of Vistec Electron Beam. (vistec-semi.com)
It can potentially be used for optimizing electron optics and for adaptive electron microscopy, maximizing sensitivity while minimizing beam-induced damage. (bionity.com)
However, this level of control has not yet been achieved in electron optics even though many applications in materials science and structural biology demand it. (bionity.com)
In electron optics, scientists use beams of electrons instead of light to image structures with atomic resolution. (bionity.com)

meanwhile, both the control and screen grids manage this electron flow by applying appropriate voltages. (radiotubesupply.com)

Of interest are diagnostic image enhancements via photon counting, dual energy, and new applications of cone-beam tomography. (nih.gov)

JEOL has provided metrology, analytical, and electron beam manufacturing instruments for over seventy years and understands that manufacturers must have confidence in their tools," shares Bob Pohorenec, President of JEOL USA. (jeolusa.com)

When they travel through a gas, they tear it apart, or ionize it, creating a state of matter called plasma in which electrons are lifted off their atoms. (sflorg.com)

Instead of laser beams, she uses high-energy electron beams, like those commonly used in scanning electron microscopy. (nanowerk.com)
With considerably higher electron energy and improved sensors, we will be able to look into the material at an even greater depth,' explains Carolin Körner. (nanowerk.com)
An electron beam with energy less than 60 keV and powerful X-ray radiation were formed in discharge gap simultaneously with SAEB. (cambridge.org)
For example, modulation or structure applied to the beam at low energy will evolve under space charge forces. (umd.edu)
The mean energy, energy spread and divergence of the electron beam can be deduced from laser-Compton scattered X-rays filtered by a material whose K-edge is near the energy of the X-rays. (aps.org)
Electron beam (E-Beam) sterilization is a form of ionizing energy that is characterized by its low penetration and high-dosage rates. (sterigenics.com)
As the product/material being sterilized passes the E-Beam, energy from the electrons is absorbed, altering various chemical bonds, damaging the DNA, and destroying the reproductive capabilities of the microorganisms. (sterigenics.com)
Sterigenics provides a portfolio of high-energy electron accelerators for industrial applications including the IMPELA(R) accelerator. (sterigenics.com)
The beam energy can be adjusted through adjusting the amplitude of the voltage pulse and the operating voltage of the whole structure, which can be varied from 24 to 50 kV with an efficient triggering method under fixed gas pressure below ∼10 Pa. (strath.ac.uk)
In principle, the researchers say it is possible to continue amping up the energy of the laser pulse by extending the period of time that it can ride in the wake of the electron beam. (sflorg.com)
That wakesurfing laser pulse-sitting just ahead of the first wave of loose electrons trailing the electron beam-will pick up energy from the wake. (sflorg.com)
Still, the California team speculated that if it was possible to keep the light on that boundary between the electrons and the area absent of electrons, the pulse could continue to gain energy, even to a tenfold increase. (sflorg.com)
The trouble is that the electron beam, and hence the wake, is not going the same speed as the laser pulse-the light is slowed down slightly by the plasma even though it is gaining energy. (sflorg.com)
The dipole magnets redirect the electron beam to a beam dump or recirculate the electrons for energy recovery. (nps.edu)
The preliminary results of the data analysis show that the prototype performs as a calorimeter should, i.e. the response scales linearly with the energy of the incoming electron. (uib.no)
Increased Power Output: Frame grid beam tubes allowed for higher power output levels, making them ideal for use in various electronic systems requiring substantial energy transfer. (radiotubesupply.com)
Analysis of Electron Transparent Beam-Sensitive Samples Using Scanning Electron Microscopy Coupled With Energy-Dispersive X-ray Spectroscopy. (bvsalud.org)
Scanning electron microscopy , coupled with energy-dispersive X-ray spectroscopy (EDS), is a powerful tool used in many scientific fields. (bvsalud.org)
An Omega filter allows electron energy loss spectra (EELS) and energy-filtered images to be acquired. (lu.se)

The SPectrometer for Internal Conversion Electrons (SPICE) has been commissioned for use in conjunction with the TIGRESS γ-ray spectrometer at TRIUMF's ISAC-II facility. (lu.se)

The dynamics of charged particle beams are governed by the particles' thermal velocities, external focusing forces, and Coulomb forces. (umd.edu)
The precision of the beam of charged particles, like protons, requires accurate diagnostics, to avoid unnecessary irradiation of healthy tissue. (uib.no)
Electron microscopy is the process of greatly magnifying tiny particles in order to see and analyse them. (lu.se)
In radiation therapy, a beam of gamma or x-rays, alpha particles, or electrons is aimed at the person's cancer. (msdmanuals.com)

The linear dispersion relation is investigated for varying beam velocity. (frontiersin.org)

Radiosurgery is a type of radiation therapy in which very focused beams of radiation are used. (msdmanuals.com)
Three-dimensional conformal radiation therapy allows doctors to deliver a precise beam of radiation that can be shaped to the contours of the tumor. (msdmanuals.com)
Intensity-modulated radiation therapy uses many devices to shape the radiation beam and deliver a dose of radiation. (msdmanuals.com)

These studies showed that the mixed beam has some advantages over electron or photon beams. (scirp.org)
For example, the electron beam is more sensitive to small fields [4] [5] than mixed or photon beams. (scirp.org)
They compared three techniques that one of these techniques was the combination of photon IMRT and electron IMRT. (scirp.org)
Consequently, in a combination of 2:1 of electron: photon mixture, a more uniform dose coverage than the pure electron in the chest and parotid area was observed. (scirp.org)

Scanning electron microscopy (SEM) depends on a focused electron beam scanned over the surface of a sample. (lu.se)

Their research showed that a combination of photons and electrons reduces the lack of uniformity in the target significantly. (scirp.org)

He had to modify his SEM to control the X- and Y-axis deflection with a 12-bit DAC and provide a custom beam blanker. (hackaday.com)
Its dynamic correction system eliminates defocusing resulting from beam deflection. (jeolusa.com)

Functionally, the instrument includes high-resolution SEM imaging based on a field-emission-gun electron source and computer-controlled ion-beam micromachining based on a Ga liquid-metal ion source. (pnnl.gov)
Direct imaging of crystal structures and nanoparticles down to 0.86 Å resolution can be performed, as well as electron diffraction and element mapping/point analyses. (lu.se)

The Phase Ieffort will make extensive use of state-of-the-art electromagnetic designcodes, including the 3-D electron gun code, MICHELLE, to develop a detaileddesign of the gun. (sbir.gov)
The properties were investigated based on a test beam experiment at DESY using the Electromagnetic Pixel Calorimeter, EPICAL-2, prototype. (uib.no)

The mobility of the two-dimensional (2D) electron gases in the quantum wells is nonetheless large, fairly unaffected by the presence of misfit dislocations generated in the lattice relaxation. (rsc.org)

The maximum amplitude of current of a supershort avalanche electron beam (SAEB) behind the foil was ∼400 A. The data on the influence of various parameters on e-beam current amplitude measured behind the foil were obtained. (cambridge.org)

The major advancement is that the triggering of the pseudospark discharge, the pseudospark discharge itself, and the post-accelerating of the electron beam are all driven by a single high voltage pulse. (strath.ac.uk)
A 3D simulation of the wake behind the electron beam (purple) and how a light pulse (blue and red stripe) might surf behind it. (sflorg.com)
A laser pulse surfing in the wake of an electron beam pulse could get upshifted from visible to extreme ultraviolet light, simulations done at the University of Michigan have shown. (sflorg.com)
Start with a short pulse of electrons traveling near the speed of light. (sflorg.com)
The electron pulse plows through, and the laser pulse is very similar to someone sitting behind the motorboat trying to surf this wake. (sflorg.com)
When the light waves exit the loose electrons, the peaks and troughs draw closer together, shifting the laser pulse to a higher and more energetic frequency of light. (sflorg.com)

These measurements mark an important improvement in the characterization, as well as repeatability, of laser-plasma-generated electron beams with a single driver laser beam. (lancs.ac.uk)

Dispersion characteristics of cyclotron-harmonic waves propagating on a neutralized spiraling electron beam immersed in a uniform axial magnetic field are studied experimentally. (nasa.gov)
In this work, the characteristics of electron beams obtained through Laser WakeField Acceleration (LWFA) in the self-injection regime produced with the FLAME high-power laser at the SPARC_LAB test facility are shown. (infn.it)

The Chair will also receive a new centrepiece for continued research into electron beam-based AM: an instrument with flexible acceleration voltage of up to 150 kilovolts and advanced sensors. (nanowerk.com)
Capable of varying the beam size widely, the system is versatile in its applications from basic research of elements to test production of optical elements to research and development for masks for high accelerating voltage exposure. (jeolusa.com)
An electron beam with a beam current of ∼20 A, beam voltage of 40 kV, and duration of ∼180 ns has been generated using this structure. (strath.ac.uk)
The optimal settings for single particle analysis are identified in order to minimize beam damage and optimize sample throughput via the choice of acceleration voltage, EDS acquisition time , and quantification model. (bvsalud.org)
With e-beam heating, aim to fix the filament current at the lowest value you can that still reaches the desired temperature, typically 3.0A. Temperature control is then by setting the high voltage, 0-1kV. (lu.se)

In this demo, students observe how an electron beam interacts with a magnet when the pair are placed close to each other. (sargentwelch.com)

This is used in semiconductor technology to produce nanostructures on silicon: for this purpose, the silicon is first covered with a thin layer of photoresist, which is then structured by the electron beam (Figure 2b I). The structured photoresist is partially removed by development (Figure 2b II) and the inscribed pattern is subsequently transferred to the silicon through etching (Figure 2b III). (joanneum.at)
The process involves spin-coating silicon wafers with SU-8, an epoxy photoresist normally used with UV light but that also turns out to be sensitive to electron beams. (hackaday.com)
The resulting carbon-doped thin films of porous silicon were irradiated on a pulsed electron booster and comparisons were made with nonirradiated films of porous silicon. (hindawi.com)

nCHREM is a center for electron microscopy and chemical composition analysis on the sub-nanometer scale. (lu.se)
Electron microscopy techniques designed to reconstruct 3-D images at micrometer volume scales at nanometer (nm) level resolutions. (bvsalud.org)

Fried and Gould first predicted the existence of electron acoustic waves (EAWs) while studying the numerical solutions of electrostatic dispersion relation in an unmagnetized, homogeneous plasma ( Fried and Gould, 1961 ). (frontiersin.org)
El objetivo del presente estudio fue analizar los efectos de diferentes técnicas de esterilización como óxido de etileno (ETO), radiación gamma (GR) y plasma a base de peróxido de hidrógeno (H2O2) en andamios biodegradables de PLA, y determinar la mejor técnica de esterilización con mínima degradación y deformación, así como una respuesta tisular favorable. (bvsalud.org)

The need to melt high melting-point metals, such as tantalum and tungsten, led to the development of an electron-beam (EB) melting method in 1907 by M. von Pirani (U.S. Patent No. 848,600). (industrialheating.com)
In a new study published in PRX, researchers from the University of Vienna (at the Faculty of Physics and the Max Perutz Labs) and the University of Siegen have now shown that it is possible to deflect electron beams almost arbitrarily using high-intensity, shaped light fields, which repel electrons. (bionity.com)
Development of an Electron Beam Recorder for a High Resolution Electronic Camera (EBR for HiREC). (dtic.mil)

Based on observations that the electron beam induces doming of the thin vitreous ice layer, we developed an algorithm to correct anisotropic image motion at the single pixel level across the whole frame, suitable for both single particle and tomographic images. (biorxiv.org)
Here, a linear combination of two models is used to bridge results for particle sizes , which are neither bulk nor sufficiently thin to assume electron transparent. (bvsalud.org)

The first step is to coat a wafer with a layer of e-beam resist. (hackaday.com)

Anatomy17

Organisms8

Diseases8

Chemicals and Drugs61

Analytical, Diagnostic and Therapeutic Techniques and Equipment96

Psychiatry and Psychology1

Phenomena and Processes40

Disciplines and Occupations12

Technology, Industry, Agriculture7

Information Science16

Health Care20

Lithography12

Microscope17

Relativistic3

Detector4

Stream of electrons3

Evaporation3

Microscopes2

Effects of the electron beam1

Transmission5

Transverse3

Focus the electron2

Experiments7

Density8

Secondary5

Intense3

Proton beams2

Lasers1

Hearth melter2

Additive Manufacturing2

Cathode3

Type of electron1

Ions3

Energies1

Vacuum3

Optics4

Voltages1

Tomography1

Analytical1

Atoms1

Energy19

SPectrometer1

Particles4

Velocity1

Radiation therapy3

Photon4

Scanning1

Photons1

Deflection2

Imaging2

Electromagnetic2

Quantum1

Parameters1

Pulse6

Characterization1

Characteristics2

Voltage5

Interacts1

Silicon3

Nanometer2

Plasma2

High3

Particle2

Wafer1