Flashcards
Linear accelerators: drift tubes and particle acceleration
Cards in this deck (11)
- 1Why is large hadron collider designed to accelerate protons to very high energies?•To create particles with large masses.
- 2Where can E=mc^2 be used?•to find the energy when a proton and antiproton annihilate.
- 3In a collision, when a particle bounces back with the same velocity, what can be said about the momentum?it is the same.
- 4What is the role of the alternating supply in a linac?•Drift tubes are connected to a.c. power supply. Consecutive drift tubes have opposite charge. Uniform electric field between two drift tubes. Resultant force of Eq exerted. •Particle accerates
- 5In short, what does the alternating supply do in a linac?•Causes the particle to accerlate
- 6Why does the length of the drift tube increase?•so that the time that the particle spends in each tube is equal to half of the time period of the power supply.
- 7What can be said about a particle inside a drift tube?•Moves at a constant speed.
•The polarity of the drift tube changes when passing the midpoint. - 8In the london eye, what can be said about the tension at different points?•Greatest - Very top
•Minimum - at the bottom - 9What is the tension equal to the points at the above mentioned points?•Top: tension = centripetal-weight
•Left and right: tension = centripetal only
•Bottom: tension: centripetal+weight - 10When drawing a momentum vector diagram what should be considered?•Draw the momentum of the particle before and after on one side.
•The other particle's momentum should e draw on the otherside.
HORIZONTAL TRANSLATION - 11—
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- Flashcards on Untitled, created by Jio Jenassi on 19/06/2016.
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- Jio Jenassi
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