Papers › An Analysis of Muon Flux from Angle Variation of the QuarkNet Cosmic Ray Detector
An Analysis of Muon Flux from Angle Variation of the QuarkNet Cosmic Ray Detector
Ricco Venterea, Urbas Ekka
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We present one of the first cosmic ray muon flux-angle variation experiments on the QuarkNet Cosmic Ray Detector (QNCRD). We first describe QNCRD and its calibration. The main focus is then quantifying muon flux decrease as a function of angle from the zenith. The angle of counters of QNCRD were incremented 15 degrees on average every $3.1$ days over the range of 0 degrees to 90 degrees for a period of approximately one month. Results showed that as the angle of the detector increased from the zenith, muon flux decreased, which agrees with previous studies. An estimate for the flux based on the model I(θ)=I₀cos(θ)ⁿ had an exponent value of n=1.39 ±0.01 for θ< 75 degrees, an underestimate of values in other literature. These findings provided a reasonable, although not entirely accurate, estimate for the value of n considering the duration of the study and sensitivity of the instrument. Our results constrain the accuracy of QNCRD and provide a source for future long-term experiments. This study also demonstrates the feasibility of conducting science experiments in high school classrooms, increasing science accessibility.
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