Question

Questions As stated in the Background, radiation is emitted from many sources. Should you be concerned about "afraid of natural radiation based on the corected CPM data for the Natural Radioactivity Samples? Radiation levels are considered Greed activity levels under 100 CPM.) (1 point) 2. What minimum shielding is needed to protect an obiect for a person) from each of the three types of radiation? (Select the first shickline material that reduced the corrected activity of the radioisotope to less than 100 CPM) 3 points) a. Alpha radiation b. Beta radiation c. Gamma radiation 3. Provide two specific reasons to explain why an x-ray technician leaves the room before activating an X-ray machine. Use terms introduced in this activity to receive full credit. (2 points) 4. Using your graph of Corrected CPM versus time, determine the half-life of Ba-137m. (1 point)