Sentences with phrase «of electron detector»

«Using a new type of electron detector — basically a super-fast, super-sensitive camera — we were able to measure the stretching of the materials from where it joined at the atomic scale to how the whole sheet fitted together, and do so with a precision better than one third of one percent of the distance between atoms.»

«Cryo - EM has revolutionized structural biology, particularly in the last three years, with the invention of new kinds of electron detectors for the microscope,» says Michael Rossmann, a physicist and microbiologist at Purdue University in West Lafayette, Ind., and a coauthor of the Zika mapping study.

Not exact matches

When struck by a particle of light, the detectors emit a single electron.

At the end of the linear accelerator, magnets first steer the positrons and electrons into separate rings and then bring them together to collide inside the BaBar detector.

The sun's core should produce electron neutrinos in a range of energies, but detectors see fewer high - energy ones than predicted.

Dubbed Y (4260), the mysterious particle has appeared about 100 times after billions of collisions of electrons and positrons recorded by the BaBar detector at the Stanford Linear Accelerator Center.

In the case of UED, an electron beam shines through a gas of iodine molecules, with the distance between the two iodine nuclei in each molecule defining the double slit, and hits a detector instead of a screen.

Another proposed method would use a high - power infrared laser to both strip electrons and break down the air, but the method requires the detector be located in the opposite direction of the laser, which would make it impractical to create a single, mobile device.

In 2008, a space - borne detector measured an unexpectedly high number of positrons — the anti-matter cousins of electrons — in orbit.

That came a few years later in 2001, when Arthur McDonald of the Sudbury Neutrino Detector in Ontario, Canada, announced that electron neutrinos could also change into the two other types.

In the next detector layer, a 63,000 - liter volume filled with liquid argon (at -183 degrees C) and thousands of sensors measures electron and photon energies.

Since only charged particles like electrons trigger a signal in the gas detector, the researcher was able to determine and subtract the proportion of gamma radiation.

Dawn's gamma ray and neutron (GRaND) detector observed evidence that Ceres had accelerated electrons from the solar wind to very high energies over a period of about six days.

The device is an adaptation of a solid - state x-ray detector technology we have developed over the last fifteen years, now modified to function as a high - speed, high dynamic range electron diffraction camera.

Batteries are handy because their electrons flow through an electrode (that nub at the top of a dry - cell battery) and from there are easily channeled into MP3 players, flashlights, toys, smoke detectors, and so on.

At Cornell University, the Sol M. Gruner (SMG) detector group has developed and demonstrated a new type of imaging electron detector that records an image frame in 1/1000 of a second, and can detect from 1 to 1,000,000 electrons per pixel.

Researchers using the BaBar Detector at the Stanford Linear Accelerator Center in California have spent the past four years smashing together electrons and their antimatter counterparts — positrons — to explore one of the greatest mysteries in the universe: Why is everything made from matter, rather than antimatter?

At Cornell University, we developed and tested a new detector for electron microscopes that enables quantitative measurements of electric and magnetic fields from micrometers down to atomic resolution.

The original bond energy of the detached electrons determines the velocity at which they hit the detector.

The detectors were essentially Geiger counters, which detect the tiny jolts of ionizing radiation but can not distinguish between xrays, protons, and electrons.

In photoelectron holography, instead of a reference wave there are electrons that fly directly to a detector after the process of tunneling ionization.

So the distribution of electrons striking the detector matched the wave function the electrons had at the moment they left their hydrogen nuclei behind.

When a high - energy electron (a beta particle) is created during a double - beta decay, that electron will scatter off other electrons and create electron - hole pairs that move inside the germanium and create a pulse of charge inside the detector.

The researchers observed this effect by using particle detectors to monitor the flight paths of electrons emitted from the near - fields of the nanospheres within the passage of the laser pulse.

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.

Left side: 2D electron momentum map of argon clusters with an average size of 3500 atoms showing a pronounced central distribution attributed to the ionization of Rydberg atoms with the detector field.

«In KATRIN, the electrons are detected in a silicon detector, which means the electrons smash into the crystal, and a lot of random things happen, essentially destroying the electrons,» says Daniel Furse, a graduate student in physics, and a co-author on the paper.

The key for NOvA is that the greater the mass of the electron neutrino flavor, the more likely the beam of neutrinos will interact with the hundreds of miles of matter they cross on the way to the detector.

Once the researchers turned the detector on, they were able to record individual electrons within the first 100 milliseconds of the experiment — although the analysis took a bit longer.

Called the NuMI Off - axis Electron Neutrino Appearance experiment, or NOvA, the project relies on a 15,400 - ton detector containing 3 million gallons of a liquid solution with a material known as a scintillator.

The discovery of magnetic properties can now be combined with ultra-small transistors, terahertz detectors, and single - electron devices previously demonstrated.

But LUX scientists have also calibrated the detector's response to the deposition of small amounts of energy by struck atomic electrons.

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.»

Various detectors collect the electrons after their interaction with the sample, providing detailed information about the atomic structure and composition of the material.

To do that, they employed two methods within one detector — one that could detect just the electron neutrinos, and another that would count the total flux of all neutrinos.

Together with scientists from the University of Regensburg, physicist Martin Mittendorff and his colleagues from the HZDR managed to develop, build, and test a reliable detector to measure the time in the terahertz range at free - electron lasers.

This boosts the energy level of electron pairs on the island, causing them to break their superconducting bond to one another and hop to a nearby probe, which then channels them to a detector.

According to the Italian - led experimental collaborations behind the proposal — ICARUS and NESSiE — the simultaneous measurement of muon and electron neutrinos at both near and far detectors would provide much stronger evidence for or against the existence of sterile neutrinos than is possible with just a single detector like the one used for LSND.

They looked for a decrease in the rate at which the electron antineutrinos reached the far site that would signal the oscillation of the particles into the two other flavors, which the detectors could not sense.

Both experiments used detectors made of gallium, and when researchers calibrated them with radioactive sources, they counted too few electron neutrinos, suggesting they were quickly morphing into sterile ones.

But Daya Bay's nuclear reactors produce billions of trillions of electron antineutrinos every second, emitted by neutrons during a process called «beta decay,» and scientists have finally been able to measure their metamorphosis as they pass through a series of detectors positioned outside the reactors.

But if you check the paths of any pair of the three original electrons, the detector will show no deflection has happened.

He pauses and then laughs: «What you would see is, instead of an electron, an electron on steroids barreling out of the detector.»

The introduction of a new generation of digital camera for electron microscopes, the so - called direct electron detectors, four years ago has enabled scientists to visualize the structure of proteins and determine the position of the atoms composing these proteins.

But a true breakthrough came in 2012 when a new toy — the direct electron detector — opened the gates, allowing for a flood of high - resolution cryo - EM structures.

Examples include handling data from faster detectors, like the Pilatus, handling new technologies, such as the X-ray free electron laser (XFEL), and handling new types of experiments, such as putting multiple crystals in the beamline at the same time, or running experiments using two different wavelengths at the same time.

Within just the past three years, improvements in electron detector technology have yielded an explosion of high - resolution structures.

«The direct electron detector has been the biggest game changer for the electron microscopy field,» says Melanie D. Ohi of Vanderbilt University.

A partial list would include the Patterson function, isomorphous replacement, and anomalous scattering, which enabled the determination of organic structures; direct (i.e., purely computational) methods of phase determination, which enabled small - molecule crystallography to be almost totally automated; synchrotron radiation and area detectors, which together made it possible to collect data on macromolecular structures in hours instead of months; and automatic interpretation of electron density maps.

On the docket is support for a new types of detectors assembled from may separate, planar segments for recording FEL (free electron laser) data at the Linac Coherent Light Source at Stanford.