A River Runs Through It

Team Members:• Carrie

Hawkins

• Kendal Hathaway

• Mandie Manning

• Tyler Merrill

Project Overview

• Why we did project

• What is involved– equipment

– equations

– programming

Radiation

• Harmful to environment

• Measurement (CPM and Nanocuries)

Cosmic Radiation (MEASURED IN MREM/YEAR)

• Cosmic radiation is high-energy gamma radiation that originates in outer space and filters through our atmosphere.

• Sea Level -- 26(Increases about 1/2 mrem for each additional

• 100 feet in elevation)

• Atlanta, Georgia -- 31 (1,050 feet)

• Denver, Colorado -- 50

• (5,300 feet)

• Minneapolis, Minnesota -- 30

• (815 feet)

• Salt Lake City, Utah -- 46

• (4,400 feet)

Terrestrial Sources (MEASURED IN MREM/YEAR)

• United States (avg.) -- 26

• Denver, Colorado -- 63

• Nile Delta, Egypt -- 350

• Paris, France -- 350

• Coast of Kerala, India -- 400

• McAipe, Brazil -- 2,558

• Pacos De Caldas, Brazil -7,000

• Terrestrial sources are naturally radioactive elements in the soil and water such as uranium, radium,and thorium. Average levels of these elements are 1 pCi/gram of soil.

GPS UNIT• What is it?

(Geographical Positioning System)

• How does it work?

• How is it involved in our project?

GPS Satellite

• History

– when was it invented

– use today

Interpolation

• Definition

• C++ program

• Sample

Sample: f(b) - f(a) f(c) - f(a)

------------- = ------------- b - a c - a

C++ Program

• cout<<"Input point you want to know(x1): ";

• cin>>x1;

• cout<<"Input point you want to know(x2): ";

• cin>>x2;

• cout<<"Input point you want to know(x1): ";

• cin>>x1;

• cout<<"Input point you want to know(x2): ";

• cin>>x2;

C++ Program (cont.)

•

if ((x1>=a1)&&(x2>=a2)&&(x1<=b1)&&(x2<=b2)) { w=a3-b3;//difference radiation content y=b1-a1;//run larger z=b2-a2;//rise larger m=sqrt((y*y)+(z*z));//slope larger y1=x1-a1;//run smaller z1=x2=a2;//rise smaller m1=sqrt((y1*y1)+(z1*z1));//slope smaller result=((w*m1)-(a3*m))/-m; cout<<"The result is: "<<result<<endl;}

Gathering Data

• GPS unit

• Average radiation content

Results (measured in CPM)

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KirtlandAKirtlandBKirtlandCKirtlandDKirtlandEShiprockAShiprockBShiprockCShiprockDShiprockE

Interpolated values:

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EXAEXBEXCEXEXD

Actual results:

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Actual vs. Interpolated Values:

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EXAEXBEXCEXDEXD

THE END