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Particle Accelerators: How do I calculate the amount of particles per bunch?

  1. Nov 5, 2009 #1
    1. The problem statement, all variables and given/known data


    The circumference of the collider is 26.66 km, and there are 4 equally spaced points where the beams collide.

    A collision takes place every 22microseconds at each one of the collision points, with 4 bunches in each beam.

    The average current per beam is 3mA.

    I have to work out how many particles per bunch this corresponds to?


    I've looked everywhere for a relevant equation and can't find anything! Any ideas please?
     
  2. jcsd
  3. Nov 5, 2009 #2

    lanedance

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    do you know what the charge of the particles is? you're given a current...
     
  4. Nov 5, 2009 #3
    Yes, sorry, they are electrons and positrons colliding.
     
  5. Nov 5, 2009 #4

    lanedance

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    ok, so if you know the charge of a particle & the overall current, you should be able to calculate the rate of particles passing a point... (from the definition of current)
     
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