Phys Lab10 - Physics 263 Section 201 Photoelectric Effect...

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Physics 263 – Section 201 Photoelectric Effect Mohand Shalaby – G00572364 Partners: David Pachowicz, Erik Tenas . Instructor: R. W. Ellsworth Experiment done on: 19 th of April 2010
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Physics 263 Mohand Shalaby Experiment – 10 Gamma Ray Detection 1. Introduction: In this experiment we are going to detect Gamma Rays by using the Geiger’s counter. A Geiger counter is a detector of charged particles and therefore can detect γ rays because γ rays can produce charged particles in their interactions with matter. This experiment has two parts. The first part is about the absorption of γ rays by lead. We have an equation that relates the unabsorbed gamma’s N with the gamma’s that are incident N 0 on a thickness x of lead, and the absorption length λ. = N N0e-xλ The second part of the experiment is to look at the statistical fluctuations of a Geiger counter count per run. 2. Apparatus: For this experiment we used the apparatus shown in Fig1:
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3. Procedure: For the first part of this experiment, we take 12 runs (of 30 seconds each) with the γ
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Phys Lab10 - Physics 263 Section 201 Photoelectric Effect...

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