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Particle Accelerators

Particle Accelerators

Assessment

Presentation

Physics

12th Grade

Practice Problem

Hard

Created by

Maria Woodbury

Used 1+ times

FREE Resource

11 Slides • 3 Questions

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​The standard model of matter

By Maria Woodbury

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Evidence...

Particle Accelerators

produce beams of charged particles with the following characteristics
-energies from a few MeV to GeV
-beams of various particle intensities (1016 particles per second)
-beams can be focussed on an area of a few mm2

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4 major components

(1) A source which produces the charged particles.

(2) A composite device to add energy to the particles and speed them up by applying a static or an oscillating electric field;

(3) A sequence of metallic tubes in vacuum to allow the particles to move freely in without colliding with air molecules or dust which can dissipate the beam;

(4) A system of electromagnets to steer and focus the beam particles or change their trajectories before being bombarded on a target sample.

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Drag and Drop

Linacs operate by charging
particles to a ​
by subjecting them to a series of​
electric potentials along a ​
beam.
Drag these tiles and drop them in the correct blank above
sub atomic
high speed
oscillating
linear
radioactive
infinite speed
high
circular

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By 1930s, it was evident that a particles increased towards relativistic velocities, their rest masses increased. This then caused changes to the resonant magnetic fields which became a problem.
Two approaches were then taken:
1. synchrocyclotrons which held the magnetic field constant but decreased the accelerating frequency
2. isochronous cyclotrons which held the accelerating frequencies constant, but changed the magnetic field

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Multiple Choice

The purpose of the magnetic field in a synchroton is to do what to the particle?

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maintain the speed

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increase the speed

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maintain the direction

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change the direction

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Reorder

Place the following in order of how they happen- in a synchrotron

Particles are accelerated from rest

Once the particles are moving, they enter the booster ring

Acceleration of the particles is achieved by E and B fields

Once the desired speed is attained, the particles enter the storage ring.

There the particles produce radiation known as synchrotron light

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​The standard model of matter

By Maria Woodbury

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