Radiation:

Background and distance from the source

This is a typed activity

Online research:

How is radiation exposure measured and what does it mean to the the individual that is exposed? How do the radiation counts in this labratory relate to radiation exposure?

• Part A. Background radiation
  • Background radiation
  • Take ten min. of data.
  • Save the graph in a word document
    • Scale the screen CTRL-J
    • Cut and past into your document.
  • Questions to answer.
    1. Is there radiation in the room?
    2. If there is what is the source of this radiation?
    3. Caculate the average background radiation in counts/min.
• Part B. Distance from the source.
  • OPEN: 02b distance.cmbl file
  • Collect three - one min. counts to average for each trial.
  • change the distance by 0.5 cm. for each trial record your data in a data table.
  • Collect dataup to 10 cm. distance minimum.
  • plot the data
  • fit a line to the data
  • discuss your results