Topic+5a

Topic 5a

Sara C.

Nuclear radiation

Definition: source: []
 * radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission. ||

Nuclear radiation is all around. There is radiation in everything that people come in contact with, but it is not a large amount of radiation to where it can harm anyone or anything. Radiation can come from many things. For example nuclear bombs. Like the bombs that were dropped on Hiroshima and Nagasaki the bombs had an element called plutonium used in it which caused large amounts of radiation. If there are large numbers of radiation levels it can do a lot of damage to people, plants and everything alike.

Name: Samantha A.  1. **//__X-rays__//** use radiation to take an internal picture of your body. X-rays play an important role in the medical field, however they are beneficial other places too. Airport security uses x-rays everyday to monitor passenger's luggage and they are also used to detect flaws in heavy metal equiptment. Resource: []
 * Nuclear Radiation **
 * REAL LIFE EXAMPLES!!!**

 2. **//__Nuclear power plants__//** provide electricity for us to use every day. 20% of our electricity comes from nuclear power plants. Power plants depend on the heat that is produced during nuclear fission. Resource: []

DAMIAN B:
 * __ NUCLEAR RADIATION __

**

BenP Table
 * 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 ||
 * All counts were obtained in a 30 second interval.

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. answer : Isotope D it had the most particles stoped by paper 3. Are there any sources in the table that emit the same type of radiation? If so, what type of radiation is emitted by these isotopes? answer: isotopes a and c they are both beta 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? answer: Because lead is a substance that stops the most amount of radiation so it is a good protector for the radiation used during x rays