Lecture 17

What is the use of LINAC accelerator ?

• Deflect charged particles using electric field

• Accelerates charged particles using magnetic field

• Deflect charged particles using magnetic field

• Accelerate charged particles using electric field

What happens to the cyclotron frequency of a charged particle if its speed doubles?

• It triples.

• It doubles.

• It halves

• It does not change.

A proton is an example of

• A lepton.

• A meson.

• A baryon.

• A gauge boson.

Hadrons are divided into two subgroups called

• Baryons and Leptons.

• Leptons and Mesons.

• Mesons and Baryons.

• Nucleons and gauge Bosons.

A quark is

• A constituent of a nucleon.

• A constituent of a hadron

• An elementary particle.

• All of the given answers

Proton and neutron are examples of  

• Leptons

• Mesons

• Baryons

• Gauge bosons

Particle and antiparticles has

• Same mass but different charge

• Same mass and charge

• Same mass but opposite charge

• Different mass but same magnitude of charge

What is the job of the magnetic field in a cyclotron?

• Create a force perpendicular to the motion of the particle, which acts a centripetal force

• To accelerate the particle between the dees

• To apply a force parallel to the direction of motion of the particle, which acts as the centripetal force.

• So the direction of the force can be alternated every half turn

What is the use of LINAC accelerator?

• Deflect charged particles using electric field

• Accelerate charged particles using magnetic field

• Deflect charged particles using magnetic field

• Accelerate charged particle using electric field

Why do the tubes in a LINAC get longer throughout the accelerator?

• So the particle can be accelerated

• So the polarity of the supply can be switch between each tube

• So the electric field can be kept constant

• So the frequency of the alternating supply can be kept constant