From MariachiWiki

March 8th 2007

Here is the data gathered below. The average rates and average accuracy was calculated and then plotted. For some reason the standard deviations do not show very well in the graph. As of currently, our data tells us that the scintillators pick up on more cosmic rays when they're layed flat and the amount of cosmic rays detected decreases as we increase the angle so that the scintillator is standing vertically. We will determine whether cosmic rays come from above or below the next time.

March 15th 2007

More experiments in determining whether cosmic rays came from above or below were done today. We hooked up wires from the scintillators to the oscilloscope and used the chart given to calculate rate of cosmic rays from the top scintillator and the bottom scintillator.

The rate of cosmic rays hitting both scintillators when the two scintillators were 2.76 meters apart had a velocity of 2.76x10^9 m/s.


















The rate of cosmic rays hitting both scintillators when the two scintillators were 0.45 meters apart had a velocity of 2.25x10^8 m/s.

It is pretty strange to me as to why the rate of cosmic rays would be greater when the scintillators were further apart than when the scintillators were close together.