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Radiology/imaging
terms chapters 1
Question | Answer |
---|---|
A positively charged electrode | Anode |
A basic part of matter that consists of a nucleus and a surrounding cloud of electrons. | Atom |
The number of protons in an atoms nucleus. | Atomic number |
A negatively charged electrode | Cathode |
A method of transporting energy through space, distinguished by wavelength, frequency, and energy | Electromagnetic radiation |
Electromagnetic radiation grouped according to wavelength and frequency. | Electromagnetic spectrum |
A negatively charged particle that travels around the nucleus | Electron |
A process in which an electron is moved to a higher energy level within the atom | Excitation |
The ability of a substance to emit visible light | Fluorescence |
The number of cycles of the wave that pass a stationary point in a second | Frequency |
Electromagnetic radiation emitted from the nucleus of radioactive substances | Gamma rays |
Electromagnetic radiation, beyond the red end of the visible spectrum, characterized by long wavelengths | Infrared rays |
A process in which an outer electron is removed from the atom so that the aton is left positively charged | Ionization |
A neutral particle located in the nucleus of an atom | Neutron |
A bundle of radiant energy (synonymous with quanta) | Photons |
A positively charged particle located in the nucleus of an atom | Proton |
A bundle of radiant energy (synonymous with photons) | Quanta |
Energy contained in light rays or any other form of radiation | Radiant energy |
A visible photographic record on film produced by x-rays passing through an object. | Radiograph |
An electron's orbital path and energy level | Shell |
Electromagnetic radiation, beyond the violet end of the visible spectrum, that is characterized by short wavelengths | Ultraviolet rays |
An area from which all air has been removed | Vacuum |
The distance between two consecutive corresponding points on a wave. | Wavelength |
A form of electromagnetic radiation similar to visible light but of a shorter wavelength | X-rays |
A number of x-rays traveling together through space at a rapid speed | X-ray beam |