Physics
22nd Mar 2010Posted in: Physics, Research 0
Muon Lifetime Measurement

Introduction

Muons were first discovered by Carl Anderson, Seth Neddermeyer and their colleagues in 1936, when they studied the tracks left behind by comic rays in their cloud chamber. Atmospheric muons are short-lived particles but are nonetheless fast-moving and thus have high penetrating power. They can pass through a block of lead easily without being stopped.

In order to measure the half-life of muons, Coan, Liu and Ye described a method using a time-to-digital converter to record the lifetime of individual muons detected. Mühry and Ritter suggested a simpler method using a digital oscilloscope.

The present experiment was interested in verifying the high penetrating power of muons, and based on the above-mentioned methods, measuring the half-life of muons using two different approaches.

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