1. B.Sc.II, Paper VIII ( IIISemester)
Presentation ON
Particle Accelerator
B.Sc.II, Paper VIII ( IIISemester) By
Dr. Mrs. Maheshmalkar P.R.

2. Particle Accelerator-
Any device that accelerates charged particles to very high speeds using electric and/or magnetic fields
Basic Structure of Experimentation

3. Modern accelerators fall into two basic categories:
Linear Accelerators- In linear accelerators, particles are accelerated in a straight line, often with a target at one to create a collision
Circular Accelerators-Circular accelerators propel particles along a circular path using electromagnets until the particles reach desired speeds/energies
Particles are accelerated in one direction around the accelerator, while anti-particles are accelerated in the opposite direction

4. Linear accelerator (LINAC)
Source of particles
RF generator with fixed frequency
Metallic drift tubes ~
Particles exit from the source and are accelerated by the potential of the first drift tube
While the particles travel through the drift tube, the sign of the potential reverses
The particles exit from the first drift tube and are accelerated by the potential of the second drift tube
As the speed of the particles increases, the distance between two tubes increases

5. li
Energy of a particle after the first tube:
U0 is the maximum voltage of the RF generator and s the average phase of the particle between the two tubes + +
Consequence: it not a possible to accelerate continuous beam, the particles are accelerated in bunches, the average bunch length is between less than 1 mm up to 1 m

6. Linear accelerator structure at FERMILAB

7. Thank You