With this gain, researchers can produce laser - accelerated
ion beams at the rate needed for treating patients, reducing the potential treatment time to several minutes, thus saving costs and making the procedure easier for patients to endure.
Finally you could fire
an ion beam at the asteroid.
Not exact matches
The isotopes in the sample are formed into an
ion beam that is detected
at the far end of the mass spectrometer, where the number of isotopes are counted.
They use electric fields to accelerate a
beam of positively charged xenon gas
ions, which shoot out of the spacecraft
at speeds of up to 90,000 mph.
After chemists
at Livermore produced a rare isotope of the element americium, they shipped it to their Russian colleagues, who
beamed calcium
ions at it with the accelerator.
«We examined the samples with electron microscopy using thin layers cut out of the composite with
ion beams,» explains Tobias Kraus, Division Head for Structure Formation
at INM.
Then, they'll fire
beams of heavy
ions such as uranium
at the container until the water within is sweltering under temperatures thousands of degrees Kelvin and pressures of several million atmospheres.
My research focus was in the field of
ion beam analysis (IBA), which is essentially an offshoot of nuclear physics in which accelerator - based techniques are applied to a large variety of analytical problems, and an opportunity arose for me to continue my work
at the National University of Singapore (NUS).
Researchers there smashed together
beams of protons with
beams of lead
ions, producing showers of subatomic particles that flew away in all directions
at high speed.
By applying the method developed in this research, measurement of the negative
ion flow
at places still closer to the plasma electrode is possible for clarifying more detailed mechanism of the negative
ions extracted as a
beam.
When used
at NIST to transmit laser light to trap
ions (electrically charged atoms), the fibers reduce stray light and fluctuations in laser
beam pointing and make it possible to transfer ultraviolet light between separate optical tables, the paper notes.
To make it happen, Savin and his colleagues, including Holger Kreckel, who is now
at the University of Illinois, Urbana - Champaign, first generated a
beam of negatively charged hydrogen
ions and sent it barreling down a tube.
These operations were conducted
at numerous places, and, during the
beam extraction, we investigated how the flow of negative hydrogen
ions changed.
These results were comprehensively evaluated, and received the NIBS Award
at the 5th International Symposium on Negative
Ions,
Beams and Sources held in Oxford, England from September 12 - 16, 2016.
Indeed, when the team collided a
beam of nickel - 58
ions with a target made of a natural mixture of nickel isotopes
at the National Heavy
Ion Accelerator (GANIL) in Caen, France, the researchers managed to spot just two fleeting nickel - 48 nuclei.
Ideas abounded: using
ion engines to ferry up the components of a moon base;
beaming power to robotic rovers on the Martian moon Phobos; attaching high - power Hall effect thrusters to the International Space Station (ISS) and putting it on a Mars cycler orbit; preplacing chemical rocket boosters along an interplanetary trajectory in advance so astronauts could pick them up along the way; using exploration pods like those in 2001: A Space Odyssey rather than space suits; instead of sending astronauts to an asteroid, bringing a (very small) asteroid to astronauts
at the space station.
The scientists aimed
beams of heavy
ions at targets of certain elements to produce nuclei with 75 neutrons and 55, 57, 59 or 61 protons in a wide range of spin states.
The team will then shoot
beams of various neutron - rich
ions at a plastic target full of deuterium, a heavy form of hydrogen in which the nucleus contains a proton and a neutron.
The use of intermediate size nuclei is expected to result in intermediate energy density - not as high as in earlier runs colliding two
beams of gold
ions at the Relativistic Heavy
Ion Collider (RHIC), but more than was produced by colliding a
beam of gold
ions with much lighter deuterons.
Weiqing Zheng, a research associate
at the Catalysis Center for Energy Innovation, and Liang Wang, an associate scientist in the Department of Mechanical Engineering, examine a sample in a lab with focused
ion beam analysis.
I am an experimentalist, and I use ultrahigh - resolution
ion - and electron - microscopy techniques, including focused -
ion -
beam scanning - electron microscopy and transmission electron microscopy, to determine the composition and structure of these materials
at scales ranging from millimeters down to the atomic.
Researchers produce such heating by aiming microwaves
at the electrons gyrating around magnetic field lines — a process that increases the thermal energy of the electrons, transfers it to the
ions through collisions, and supplements the heating of the
ions by neutral
beam injection.
At the same time, Berkeley Lab researchers have been studying
ion beams for the possible production of fusion through the same process.
When the charged
beam reaches the end of the linac, eponymous «neutralized drift compression» takes over: plasma is injected to neutralize the
ion beam; the
ion bunches are squeezed radially by magnetic fields while the tails of the bunches are allowed to catch up to their heads, forming a compact, focused
beam at the precise moment it hits the target.
Once it's switched on, the LHC will hurl
beams of protons and
ions at a velocity approaching the speed of light.
The Neutralized Drift Compression Experiment - II (NDCX - II) is an energy - efficient induction accelerator that will focus
beams of
ions using the technique of neutralized drift compression developed
at Berkeley Lab.
Michael Roukes, a physicist developing nanoscale tools for bioscience and medicine, says «Room
at the Bottom» anticipated a host of important technologies and scientific fields, including spin electronics («spintronics»), microelectromechanical systems (MEMS), electron -
beam and
ion -
beam fabrication and much more.