1 / 14

Velocity Filter: used to fire charged particles at exact speeds

Velocity Filter: used to fire charged particles at exact speeds. Oak Ridge National Lab. What is this?. MagLev. Circulating Charges. Find the radius of curvature of the path of an electron fired at 10,000 m/s at right angles into a 5 Tesla field.

zea
Download Presentation

Velocity Filter: used to fire charged particles at exact speeds

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Velocity Filter: used to fire charged particles at exact speeds Oak Ridge National Lab

  2. What is this?

  3. MagLev

  4. Circulating Charges Find the radius of curvature of the path of an electron fired at 10,000 m/s at right angles into a 5 Tesla field.

  5. Particle accelerators: use E and B fields to accelerate particles to high KEs, often measured in eVs The Cyclotron “dee”

  6. Rutgers, NJ

  7. The linear accelerator or Linac was the first new idea for accelerating particles in a straight line without the need for massive voltage supplies. The theory was that the linac could accelerate a particle using a lower voltage repeatedly . The Linac

  8. Fermilab * U. Chicago * 4 mile tunnel

  9. CERN (European Laboratory for Particle Physics) is an international laboratory where the W and Z bosons were discovered. CERN is the birthplace of the World-Wide Web. The Large Hadron Collider (see below) will search for Higgs bosons and other new fundamental particles and forces.

  10. Particle Detector at CERN

  11. SSC1980s: neverfinished

  12. Period and Frequency of Circulating Charges Find the period of an electron trapped in a 5 Tesla magnetic field. From previous analysis: F = qvB = mv2/r r = mv/qB F=1/T = 7.6 x10 –11circles/sec T = 2  r / v since v = d / t T = 2  (mv/qB ) / v = 2  m/qB T = 2  1.67 x 10–31 / 1.6 x 10–19 C * 5 T T =1.3 x 10 –12 sec

  13. Mass Spectrograph:from the radius of the circle made you can identify the particle . If r = mv/qB then q/m = v/Br

More Related