Chapter 13- Radiation Flashcards
Travel as photons or o keys of energy
Behave both as particles and waves
Higher fire quench means higher energy
Electromagnetic radiation
A spontaneous process in which an unstable nucleus transitions from a higher energy level to a lower energy level
Radioactive decay
A nuclide that undergoes radioactive decay
Radionuclide
The time required for an initially large number of atoms to decay such that only half of the initial number is left
Half-life
______ can damage DNA and cause mutations
X-rays
Safety rules for radiography
- Distance from source (6ft)
- Barrier
- Exposure time
Based on receiving and processing the reflected energy
Diagnostic ultrasound
A device that utilizes the piezoelectric effect to convert electropotential energy (voltage$ into mechanical vibration (sound or pressure) and vice versa
Transducer
6 core functions of ultrasound system
- Transmit beams
- Recurve beams
- Process the returned data
- Perform measurements on the data
- Display processed data
- Store processed data
The ability to measure the velocity and characteristics of blood flow
The Doppler Effect
Identification and measurement of a gas concentration are made
Infrared absorption analysis
Laser beam is passed and scattering frequency of the sample gas is measured
Identify oxygen, CO2, nitrous oxide, and all volatile anesthetics
Raman scattering analysis
This ionized gas molecules and passed them through a magnetic field
Gas particles deflected by magnetic & identification based on amount of deflection
Mass spectrometry
This technique can measure partial pressure of a gas
Piezoelectric gas analysis
Can measure anesthetic gases
Photoacoustic gas analysis
