33 terms

2 Week vocab for radiology

the positively charged electrode of the xray tube; server to decelerate the electrons as well as store and dissipate heat
the smallest divided part of matter that can enter into combination or chemical reactions with other atoms
Atomic number
the number of protons or positive charges in the nucleus of an atom
Atomic weight
the weight of an atom as compared to the weight of a carbon atom
the negatively charged electrode in the xray tube that serves as a sourse of electrons
Electromagnetic radiation
the movement of electric and magnetic fields through space at the speed of light
a negatively charged particle that revolves around the nucleus of an atom in well defined orbits
the capacity for performing work
Focusing cup
a metal cup that surrounds and houses the filament and is negatively charged; its purpose is to condense or focus the electrons produced by thermonic emission
Glass envelope
the glass enclosure of an xray that provides structural support for the components and maintains the vacum necessary for operation
Heat unit
the unit of measure of the heat produced in an x ray tube during the production of an x-ray
Heel effect
the uneven distribution of x-rays from the anode to the cathode and of the tube; a decreased in the x-ray intensity at the anode end of the x-ray tube
the resistance a body offers to any change in positon
the addition or subtraction of an electrons from an atom caused by bombarding matter with x-radiation or electrons
an atom of an element that has the same atomic number but more or fewer electrons
a technical factor controlling the quality of radiation produced by a radiographic or fluoroscopic unit
kinetic energy
energy which is a result of a body being in motion
Line voltage compensator
a device that senses changes in incoming voltage and allows for either automatic or manual adjustment for the changes
a substance with the power to attract ferromagnetic substances
anything that has mass and takes up space; possesses the propery of inertia
the production of milliamperage and time; a technical unit to determine the quanity of radiation produced during a radiographic exposure
the smallest part of a substance that retains all the characterics of the original substance
a particle contained within the nucleus of an atom having no charge
the central body of an atom, containing protons and electons
Potential energy
the energy inherent in a body at rest
a particle contained within the nucleus of an atom, having a positive electrical charge
the unit of radiation absorbed dose recieved by human beings or animals
a process that prevents the flow of electrons from the anode to the cathode
the radiation equivalent man; quanities radiation dose for humans
the unit of radiation exposure or intensity, quantifies radiation output or exposure
to coils of wire, insulated from one another and wraped around a single iron core whos purpose is to change voltage from one level to another
the force applied multiplied by the distance through which the force acts
1/1000 of a ampere