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)

0

5

10

15

20

25

30

35

40

KirtlandAKirtlandBKirtlandCKirtlandDKirtlandEShiprockAShiprockBShiprockCShiprockDShiprockE

Interpolated values:

05

101520253035404550

EXAEXBEXCEXEXD

Actual results:

0

5

10

15

20

25

30

35

40

EXAEXBEXCEXDEXE

Actual vs. Interpolated Values:

05

101520253035404550

EXAEXBEXCEXDEXD

THE END