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Cosmic Rays

Cosmic Rays. Ty Fredriks SCIPP QuarkNet Summer Institute. Experiment Design. Set up CRMD to run overnight Gather data Analyze data using flux and performance studies Present data to esteemed colleagues. Performance Analysis. Observations:

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Cosmic Rays

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  1. Cosmic Rays Ty Fredriks SCIPP QuarkNet Summer Institute

  2. Experiment Design • Set up CRMD to run overnight • Gather data • Analyze data using flux and performance studies • Present data to esteemed colleagues

  3. Performance Analysis • Observations: • Each detector had relatively the same number of counts • Histogram shows graphs slightly offset • Interpretation: • Last year’s plateau still working but needs to be fine-tuned

  4. Flux Analysis • What is flux? • Units: events/m2/60 sec • Or how much, how fast over how far • Observed rates • ±8,500 hits per m2 per 60 seconds • 140 hits per second =140 hz • Channel 0 only (detector A)

  5. Uncertainty • The amount of relative assurance that our measurements are statistically significant • Uncertainty = 1/root(n) • 1/root(8,500)=1/92.2 = .011 • 1.1% uncertainty • Why a low uncertainty? • Large number of samples

  6. Final Observations of SCIPP • Most useful outcome of week: • Having an easily-accessible method of detector usage. • Great looking instrument for high student interest.

  7. Final Observations of SCIPP • Great opportunity for teacher collaboration

  8. Final Observations of SCIPP • High interest, collegiate level lectures on cutting-edge science topics.

  9. Final Thanks • Steve Kliewer • For all the effort at putting together a quality educational opportunity, as well as his woodworking craftsmanship. • Vicki and Hartmut • For all their efforts at organizing this workshop • Chris Whelan and QuarkNet • For allowing us (and our students) to play with such interesting equipment.

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