1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Electron in magnetic field equation

  1. Jun 9, 2010 #1
    equation for radius of curvature of relativistic electron in magnetic field?

    is this correct:


    R = gamma * m * v / e * B

    where gamma is lorentz factor, m is electron mass, v is velocity, e is electron charge and B is magnetic field strength.
     
    Last edited: Jun 9, 2010
  2. jcsd
  3. Jun 9, 2010 #2
    I use this simplified formula (E is electron's energy)
    [tex]
    R (\textrm {in m})=3.336\;\frac{E (\textrm {in GeV})}{B (\textrm {in T})}.
    [/tex]
     
  4. Jun 9, 2010 #3

    vela

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Education Advisor

    Yes, that's correct. The only difference between the relativistic and non-relativistic formulas is the gamma.

    m is the rest mass of the electron. Whenever physicists refer to mass, they almost always mean rest mass. The concept of relativistic mass, while popular with the laypeople, is not a very useful one since it's basically equal to the relativistic energy.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Electron in magnetic field equation
Loading...