Muon Lifetime Eric Chu & Joseph St. Marie. Goals of our Experience Gain an understanding of electronics Design and run a working muon experiment Analyze.

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Presentation transcript:

Muon Lifetime Eric Chu & Joseph St. Marie

Goals of our Experience Gain an understanding of electronics Design and run a working muon experiment Analyze data and improvement experiment Run final experiment Acquire data reading the lifetime of the muon to be close to 2.19µs.

Understand the Electronics How do we use the oscilloscope? What is a scintillator? How does the setup work?

An Oscilloscope is…

A Scintillator is…

The Setup is…

Preparation Conversion Graph

Setup

First Experiment Started: June 25 at 16:00 Ended: June 28 at 15:38

Results

Results Cont.

Errors Thresholds not set Scintillator D broken Scintillator C not receiving ample voltage

What they Mean Equation used is 1/c 1 st graph = 1/0.386 = 2.591μs 2 nd graph = 1/0.397 = 2.519μs

Final Experiment Started: July 2 at 12:45 Ended: July 6 at 9:20

Preparation Coincidence graphs Singles graphs New power supply Rearranging the setup

Coincidence Between Scintillators A & B (B fixed)

Coincidence Between Scintillators A & B (A fixed)

Coincidence Between Scintillators B & C (B fixed)

Singles Graph To see what kind of particles are coming through (distinguish between noise and “real” particles) Get a better understanding of how threshold affects counts

Scintillator A Singles

Scintillator B Singles

Scintillator C Singles

Scintillator D Singles*

Coincidence Graphs Final Threshold Levels: –Scintillator A: mV –Scintillator B: mV –Scintillator C: mV

New Setup

Results

Results Cont.

What they Mean Equation used is 1/c 1 st graph = 1/0.567 = 1.764μs 2 nd graph = 1/0.655 = 1.527μs 3 rd graph = 1/0.462 = 2.165μs 4 th graph = 1/0.501 = 1.996μs

Errors Different setup Width Faulty equipment Different conversion at lower levels? Or... Fireworks!!

El Fin (Spanish for “The End”)