| A | B |
|---|
| ultrasound | any sound that is of higher frequency |
| precession | a process of Nuclear Magnetic Resonance which occurs when nuclei do not line up but oscillare in a particular way |
| Larmor frequency | a process of Nuclear Magnetic Resonance in which the particular frequency of precession depends on the magetic field and the particular nucleus involved |
| relaxation time | during Nuclear Magnetic Resonance, the time over which radio waves are emitted |
| exposure | a measure of the total amount of ionization produced |
| absorbed dose | the energy absorbed per unit mass of tissue |
| dose equivalent | an attempt to measure the radiation damage that actually occurs in tissues |
| pitch | measures how high or low a sound is |
| physical half-lfie | the time for half of the radioactive nuclei to decay away |
| biological half-life | the time for half of the radioactive nuclei to be removed from the body by biological processes |
| magnetic resonace imaging | superior method to CT scan becfause the image is constructed without dangerous radiation |
