Proton beam
Encyclopedia
Proton beams, a type of ion beam
s, are the result of proton
particle acceleration
by means of a cyclotron
or a synchrotron
and can be used e.g. in Proton Beam Therapy for cancer treatment or for proton beam writing
in lithography.
Ion beam
An ion beam is a type of charged particle beam consisting of ions. Ion beams have many uses in electronics manufacturing and other industries. A variety of ion beam sources exist, some derived from the mercury vapor thrusters developed by NASA in the 1960s.-Ion beam etching or sputtering:One type...
s, are the result of proton
Proton
The proton is a subatomic particle with the symbol or and a positive electric charge of 1 elementary charge. One or more protons are present in the nucleus of each atom, along with neutrons. The number of protons in each atom is its atomic number....
particle acceleration
Particle acceleration
In a compressible sound transmission medium - mainly air - air particles get an accelerated motion: the particle acceleration or sound acceleration with the symbol a in metre/second². In acoustics or physics, acceleration is defined as the rate of change of velocity. It is thus a vector...
by means of a cyclotron
Cyclotron
In technology, a cyclotron is a type of particle accelerator. In physics, the cyclotron frequency or gyrofrequency is the frequency of a charged particle moving perpendicularly to the direction of a uniform magnetic field, i.e. a magnetic field of constant magnitude and direction...
or a synchrotron
Synchrotron
A synchrotron is a particular type of cyclic particle accelerator in which the magnetic field and the electric field are carefully synchronised with the travelling particle beam. The proton synchrotron was originally conceived by Sir Marcus Oliphant...
and can be used e.g. in Proton Beam Therapy for cancer treatment or for proton beam writing
Proton beam writing
Proton beam writing is a new direct-write lithography process developed by Frank Watt and colleagues at the Centre for Ion Beam Applications , Department of Physics, National University of Singapore....
in lithography.