C.Christie+PowerPoint+Presentation

=__Radiation Presentation__= By: Craig Christie

=__Outline__=

__Alpha Emission__
Ex: 23892U -> 23490Th + 42He
 * Alpha particles are nuclear decay particles
 * They have 2 protons and 2 neutrons
 * A large nucleus will use alpha emission to get rid of protons and neutrons

__Beta Emission__
Ex: 31H -> 32He + e-
 * A nuclear decay process
 * A neutron is broken into one electron and one proton
 * The electron is released, but the proton remains in the nucleus
 * During this process, the elements atomic number increases

__Positron Emission__
Ex:
 * A positron is a positively charged electron
 * Occurs when the neutron to proton ratio is too small
 * a proton is turned into a neutron and emits a positron

__Electron Capture__
Ex:
 * A process that unstable atoms use to become more stable
 * An electron is drawn into the nucleus and combines with a proton to form a neutron
 * Then the neutron is ejected from the nucleus

__Gamma Emission__
Ex:
 * Occurs after the emission of a decay particle
 * When a particle is ejected from a nucleus, there may be excessive energy
 * The energy is released as gamma rays

__Conclusions__
Throughtout this presentation, we can conclude that alpha emission, beta emission, positron emission, electron capture, and gamma emission are all forms of nuclear decay. Alpha emission, Beta emission, and positron emission, and electron capture all deal with ejecting and breaking down pieces of a nucleus. Gamma emission, however, does not eject particles, it just emits heat.

__Bibliography__
http://www.bcpl.net/~kdrews/nuclearchem/nuclear.html#Gamma

http://physics.unco.edu/sung/sci103/nuclear/radioactivedecay.htm

http://www.uic.com.au/ral.htm

http://education.jlab.org/glossary/electroncapture.html