Sentences with phrase «called electron beam»

Pulickel Ajayan and Sumio Iijima of NEC's Fundamental Research Laboratories in Tsukuba put some nanotubes in a vacuum chamber and deposited lead particles on them using a technique called electron beam evaporation.

Demonstrating the technique in the cleanroom at the Center for Nanoscale Systems, a National Science Foundation - supported research facility at Harvard, Kats uses a machine called an electron beam evaporator to apply the gold and germanium coating.

Not exact matches

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

In microscopy much effort is invested in reducing the impact of light or electron beam — the so - called observer effect» — on the sample to ensure that the images represent truly pristine structures, unaffected by the process of measurement.

Then the beam travels through a device called a wiggler, which literally wiggles the electrons to make them produce a precise type of electromagnetic wave.

To break this limit in crystal size, an extremely bright X-ray beam was needed, which was obtained using a so - called free - electron laser (FEL), in which a beam of high - speed electrons is guided through a magnetic undulator causing them to emit laser - like X-ray pulses.

The accelerator produces a small, intensely concentrated beam of electrons called a pencil beam.

So we placed the electron lenses, one on each beam, at a certain distance from the detectors - called the optical distance - where they have an effect at the same point in the «phase» of the particle beam that's inside the detectors.»

«It's not a glass lens like you'd find in a camera,» Fischer said, «but we call the technique «electron lensing» because, like a lens that focuses light, the electron beam changes the trajectory of the protons flying through it.»

The way in which the team made the electron beam small enough to be able to interact with the intense laser was through a process called «laser wakefield acceleration.»

For this latest study of DNA nanostructures, Ren used an electron - beam study technique called cryo - electron microscopy (cryo - EM) to examine frozen DNA - nanogold samples, and used IPET to reconstruct 3 - D images from samples stained with heavy metal salts.

Berkeley Lab was home to a pioneering experiment) in 2004 that showed laser plasma acceleration can produce relatively narrow energy spread beams - reported in the so - called «Dream Beam» issue of the journal Nature - and in 2006 used a similar laser - driven acceleration technique to accelerate electrons to a then - record energy of 1 billion electron volts, or GeV.

Berkeley Lab was home to a pioneering experiment in 2004 that showed laser plasma acceleration can produce relatively narrow energy spread beams — reported in the so - called «Dream Beam» issue of the journal Nature — and in 2006 used a similar laser - driven acceleration technique to accelerate electrons to a then - record energy of 1 billion electron volts, or GeV.

The radio lobes are produced from electrons shot out from the nucleus in narrow beams called jets.

Called TEM, this is a microscopy approach that shoots a beam of electrons through a tissue to see what interactions occur.

Computer CRTs are an example with the electron beam forced towards the phosphor - coated screen by more or less «static» electric field all the while under the back and forth influence of a dynamic magnetic field from the deflection coils (called «the yoke» in the trade).