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# Unit 10 : Equations & Terms

You should be comfortable explaining the following terms:

- Radiation Imaging, Single Photon Emission Computed Tomography
- Positron Emission Tomography, MRI, CT, SPECT, PET, Absorbed Dose
- Radiation Damage, Weighting Factor, Gray, Sievert, Equivalent Dose
- Radiation Workers, Fractional Attenuation, Attenuation Co-efficient
- Transverse Variations, Internal Radiation Imaging, Pharmaceutical
- Computed Tomography, CT Scan, Gamma Camera, Biological Activity
- Collimation, Back-to-Back, Scintillator, Sodium-Iodide, Septa 
- Image Distortion, Position Resolution, Stopping Power, Decay Time
- Scintillation Crystal, Photomultiplier, PMT, Bismuth Germinate
- Lutetium/Gadolinium orthosilicate, Photocathode, Dynode
- Photoelectrons per keV, Combined Scanner, Radiation Therapy
- Magnetic Resonance Imaging, MRI, Nuclear Magnetic Resonance
- NMR, Hadron Therapy, Stopping Curve