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Stern-Gerlach Experiment Physics 243 Fall 2007

Stern-Gerlach Experiment Physics 243 Fall 2007. Chris Osborn Daniel Richman. Status Report. Components of the experiment Gradus ad parnassum Current stage Degas?. Components. detector – reads current from ions from potassium oven. Components. handle for detection rotation. Components.

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Stern-Gerlach Experiment Physics 243 Fall 2007

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  1. Stern-Gerlach ExperimentPhysics 243 Fall 2007 Chris Osborn Daniel Richman

  2. Status Report • Components of the experiment • Gradus ad parnassum • Current stage • Degas?

  3. Components detector – reads current from ions from potassium oven

  4. Components handle for detection rotation

  5. Components electromagnet driving coils

  6. Components mechanical pump

  7. Components diffusion pump water cooling pipes

  8. Components potassium oven

  9. Components pressure gauge via ionization

  10. thermocouple gauge Components pressure gauge ionization gauge electrometer magnet power supply

  11. Gradus ad parnassum • Evacuate chamber • mechanical to 10-2 mbar • diffusion to 4x10-5 mbar (with cooling) • Potassium oven • load potassium under nitrogen pressure • heat to 180 oC – 250 oC • Detect beam of particles • Do we have a collimated/directed beam? • Why aren’t we seeing a current on electrometer? • no consistent behavior of electrometer

  12. degas button?

  13. Edgar Degas (1834 – 1917) Draughtsman, Painter, Sculptor A founder of the Impressionists, though he rejected the label

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