Air Kerma - Answers the kinetic energy released per unit mass or the number of x-ray phtotons per unit
mAs. Gy.
Corrective Maintenance - Answers indicates the actions taken to eliminate potential or actual problems
Entrance Skin Dose - Answers Measures the exposure does at the skins surface. Referred to as patient
dose.
Environmental Protection Agency (EPA) - Answers Monitors matters ranging from blood borne
pathogens to disposal of processing chemicals
Exposure linearity - Answers the ability of a radiographic imaging unit to produce a constant radiation
output for multiple combination of mA and time
Feedback - Answers the process of implementing the corrective action
Glandular dose - Answers average radiation dose to the center of the breast during an exposure.
Dependent on HVL, breast thickness, and tissue type.
Ghosting - Answers occurs when an earlier exposure may change the sensitivity of the detector, leading
to under exposure or over exposure to a later exposure.
HVL - Answers the amount of filtration that will reduce the exposure rate to half it's initial value
Illuminance - Answers the amount of light that falls on a surface. 1 lux is equal to 1 lumin/m^2
Lag - Answers occurs when residual signals of prior images are retained
luminance - Answers the brightness of the illuminator and a measure of the amount of light either
scattered or emitted by a surface
OSHA - Answers Occupational Safety and Health Administration; responsible for establishing and
enforcing safety and health standards in the workplace.
Preventative Maintenance - Answers refers to an action taken on a regular basis to prevent
deterioration of image quality or any breakdown of the imaging chain.
Tolerance - Answers the amount of measurement variation allowed under normal operating
circumstances
National Center for Devices and Radiological Health - Answers a branch of FDA that is responsible for
ensuring the safety and effectiveness of medical devices and eliminating unnecessary human exposure
to radiation.
Nuclear Regulatory Commission - Answers protects public health and environmental safety from the
effects of radiation