Physics
von Andrew Dao
1. MRI
1.1. Strong magnet
1.2. line up nuclei
1.3. RF pulse change direction
2. CAT Scans
2.1. uses x rays
2.2. Computer processed
2.3. Computerised axial tomography
3. Fibre Optics
3.1. Coherent
3.1.1. Same pattern
3.2. Incoherent
3.2.1. Different pattern
4. Medical Imaging
4.1. PET Scans
4.1.1. Positrion Emission Tomography
4.1.2. Detect pairs of gamma rays
4.1.3. See how the body function is working
4.2. Ultra Sound
4.2.1. Safe
4.2.2. echoes reflect off tissue boundaries
4.2.3. Higher frequency than normal hearing
5. Radiation
5.1. Mass Number & Atomic Number
5.2. What is an isotope
5.2.1. Same number of protons
5.2.2. Different number of neutrons
5.3. Decay Equations
5.4. Ionising radiation (what is it?)
5.4.1. High Energy getting rid of an electron
5.5. Types of Radiation
5.5.1. Alpha
5.5.1.1. Heavy
5.5.1.2. Short wave length
5.5.1.3. Low ionization power
5.5.1.4. Helium emitted
5.5.2. Gamma
5.5.2.1. Light weight
5.5.2.2. emitted when radioactive decay
5.5.2.3. High frequency/ high energy
5.5.3. Beta
5.5.3.1. Electron emitted
5.5.3.2. Medium weight
5.5.3.3. Can penetrate skin
5.6. Equivalent and absorbed dose
6. Electricity
6.1. Series and parallel circuits
6.2. Voltage, current, resistance, charge
6.3. Voltage vs current graphs
6.4. Ohmic and non-ohmic behaviour
6.4.1. Ohmic
6.4.1.1. follows ohm's law
6.4.2. non ohmic
6.4.2.1. Doesnot follow ohm's law