| 释义 |
fluence
fluence (ˈfluːəns) n1. physics particle density or energy density, used to describe the output of a radiation field or of a laser beam2. archaic a flow; flowing3. archaic fluency4. put the fluence on someone informal to apply hypnotic or mystical influence to a personfluence - To put the fluence on is to use one's mysterious, magical, or hypnotic power.See also related terms for mysterious.Translationsfluence
fluence[′flü·əns] (electromagnetism) The total energy per unit area carried by a pulse of electromagnetic radiation. (physics) A measure of time-integrated particle flux, expressed in particles per square centimeter. fluence
flu·ence (H), (flū'ens), A measure of the quantity of x-radiation in a beam in diagnostic radiology, either particle fluence, the number of photons passing an aperture of unit cross-sectional area, or energy fluence, the sum of the energies of the photons passing through a unit area. Compare: flux. [L. fluentia, a flowing, fr. fluo, to flow] flu·ence (flū'ĕns) A measure of the quantity of x-radiation in a beam in diagnostic radiology, either particle fluence, the number of photons entering a sphere of unit cross-sectional area, or energy fluence, the sum of the energies of the photons passing through a unit area.
Compare: flux[L. fluentia, a flowing, fr. fluo, to flow]fluence (floo′ĕns) [L. fluere, to flow] In radiation oncology, the number of photons per unit area, measured in J/m2 (joules/square meter). Fluence is one of several modifiable factors in the treatment of diseased tissues with radiation. |