This knifeless surgery uses highly
focused beams of radiation to ablate tumors.
DARPA is looking at more efficient technologies, like fiber lasers and liquid lasers, which could lead to smaller, more compact devices, while the Navy is researching a Free Electron Laser, an experimental technology that uses high - speed electrons to generate an extremely powerful
focused beam of radiation.
Not exact matches
And if this
beam is also
focused into a speck with a three millimeter diameter, then we get an intensity
of light an order higher than the intensity
of light close to the sun's surface, which has a
radiation power
of about 20 gigawatts a square meter.
Focusing the machine's full output into a spot
of only 100 nanometers in size, the team generated an X-ray
beam with intensity equivalent to all
of the sun's
radiation that is striking Earth's surface but concentrated in an area with the diameter
of a human hair.
The neutron star's magnetic field lines converge at the magnetic poles, so the charges get
focussed and a narrow cone
of non-thermal
radiation is
beamed outward.
In order to
focus the entire heat
radiation from the wall onto the target, all
of the
radiation from the wall would need to be
focused in parallel
beams first, before it hits the lens.
In the Itrax WoodScanner system, the sample laths are scanned in increment steps using a
focused high - energy X-ray
beam and an X-ray line camera that detects the amount
of radiation that passes through the sample.
First, doctors are transitioning from the old - fashioned way
of administering
radiation therapy — an unfocused
beam of weak
radiation — to the newer method
of focused, high - energy
radiation administered by linear accelerators.