Topic+5

Topic 5

Dana m Radiation is really nothing more than the emission of energy waves through space, as well as through physical objects. Usually these energy waves are electromagnetic radiation which are classified into [] Nuclear radiation are the particles that are given off when there is a nuclear bomb dropped and they are also given off during x rays. They are cancer causing and depending on the type they can be deadly there are three types alpha being the least harmless and then beta a little more dangerous than gamma the most harmful.

Samantha L. 1. Gamma rays are emitted by thallium nuclei during stress tests for heart disease. 2. X-rays are used to image body interior parts either in “photos” or CT scans. (http://consumerchemfinal4.wikispaces.com/) ^ Both found there.

Eric S



alex r

Table *All counts were obtained in a 30 second interval.
 * ** Source ** || ** No Shielding ** || ** Shielded by Paper ** || ** Shielded by Aluminum ** || ** Shielded by lead ** ||
 * None (background) || 11 counts || 10 counts || 12 counts || 11 counts ||
 * Isotope A || 5430 counts || 5406 counts || 11 counts || 10 counts ||
 * Isotope B || 2466 counts || 16 counts || 15 counts || 12 counts ||
 * Isotope C || 6270 counts || 6274 counts || 10 counts || 14 counts ||
 * Isotope D || 1245 counts || 1240 counts || 1237 counts || 13 counts ||

 1. Write the (transmutation) reaction for alpha decay of uranium-238.  2. Which of the sources in the table is an alpha emitter? Explain your answer. isotope d because it emmits the most counts  3. Are there any sources in the table that emit the same type of radiation?no If so, what type of radiation is emitted by these isotopes?  4. Based on the results given in the table above, explain why a lead apron placed is over your chest when you receive dental x-rays? because lead can sheild your organs from the rays.