Particle Beam Therapy

Introduction :

Cyclotron and Synchrotron are type of particle accelerator . Cyclotron is an apparatus in which charged atomic and subatomic particles are accelerated by an alternating electric field while following an outward spiral or circular path in a magnetic field. Synchrotron a cyclotron in which the magnetic field strength increases with the energy of the particles to keep their orbital radius constant .

Following are the compare and contrast between Cyclotron and Synchotron : 

Cyclotron	Synchrotron
1.       Use an increasingly strong magnetic field to control the paths of particle
2.       Used to accelerate charged elementary particles or ions to higher energies
3.       Basic part v  A source of elementary particles or ions v  A tube pumped to a partial vacuum in which the particles can travel freely v  Some means of speeding up the particles
Constant magnetic field and constant frequency electric field	Varying electric and magnetic field
A cylindrical or spherical chamber	A torus shaped tube
Its curve becomes larger	A constant radius circle
250MeV	6.84TeV

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