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Particle: Lecture 3 (Part 1) - Statistics
General Stats
- This quiz has been taken 25 times
- The average score is 3 of 25
Answer Stats
| Hint | Answer | % Correct |
|---|---|---|
| Name an ideal particle for acceleration | Electron/Positron/Proton/Antiproton | 75%
|
| True or false: Electric fields are used to accelerate the beams | True | 75%
|
| True or false: Magnetic fields are used to steer the beams | True | 75%
|
| How to make a high energy beam: | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | 25%
|
| Define the luminosity in terms of N1, N2, frev, LX and LY | (1/4*pi)*(frev*N1*N2/LX*LY) | 0%
|
| Name a long-range electromagnetic interaction a particle can have with matter | A charged particle can ionise and excite atoms in the material along its way | 0%
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| Step 1: | An easily obtainable particle | 0%
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| Step 3: | A particle that is stable for the duration of the time taken until collision | 0%
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| Step 2: | A particle you can accelerate | 0%
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| Why does the beam have to form bunches instead of a continuous beam in alternating acceleration? | Because some particles would get decelerated in a continuous beam | 0%
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| Why is a synchotron named as such? | Because the magnetic field has to rise synchronously with the beam energy, in order to keep the beam on the fixed orbit while it gains in energy | 0%
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| Why is the 1/4*pi geometric factor included in the above definition? | Because we assume elliptically-shaped beams with a Gaussian distribution | 0%
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| What are the factors that we need to know if we want to calculate the number of events (N) of a certain process to occur? | cross section of the considered process, the number of particles in the two beams, the frequency of the beam revolution and the size of the beam at the interaction point | 0%
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| Name two things accelerated particles are used for | Directing them on a fixed target and colliding two accelerated beams head-on | 0%
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| Name the two main types of interaction for a strong interaction | Elastic scattering and inelastic scattering | 0%
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| True or false: At high temperatures inelastic scattering is less dominant than elastic collisions? | False | 0%
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| Name the two main types of accelerators | Linear and Cyclic | 0%
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| Express the number of events, N, in terms of luminosity, time and the cross section of the considered process (P) | P*int(Ldt) | 0%
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| Give an equation for the Lorentz force ( in terms of q, v, B and E) | q(v.B + E) | 0%
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| What are the uses of high energy beams? Give two uses | Resolution of the structure of objects and the creation of new particles | 0%
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| What are the units of luminosity? | s^(-1)*m^(-2) | 0%
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| How is acceleration achieved in a synchotron? | The beam repeatedly traverses cavities placed in a ring. | 0%
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| What is meant by inelastic scattering? | The final state particles differ from the initial state. | 0%
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| What does frev define? | The frequency of revolutions of the beam | 0%
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| Name a short-range interaction a particle can have with matter | The particle can interact strongly with an atomic nucleus | 0%
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