Photons [fotony]

topical
69
Persistent link   https://www.medvik.cz/link/D017785
Definition

Discrete concentrations of energy, apparently massless elementary particles, that move at the speed of light. They are the unit or quantum of electromagnetic radiation. Photons are emitted when electrons move from one energy state to another. (From Hawley's Condensed Chemical Dictionary, 11th ed)

Annotation
elementary particles; IM
elementární částice, IM
DUI
D017785 MeSH Browser
CUI
M0026875
History note
94; was see RADIATION 1985-1993
Online note
use RADIATION to search PHOTONS 1985-93
Public note
94; was see RADIATION 1985-1993

Allowable subheadings

AE
adverse effects 1
CL
classification
HI
history 1
TU
therapeutic use 9

G Phenomena and Processes
G01 Physical Phenomena 77
G01.249 Elementary Particles 19
G01.249.335 Electrons 94
G01.249.467 Heavy Ions 13
G01.249.600 Mesons 1
G01.249.660 Nucleons
G01.249.675 Phonons
G01.249.705 Photons 69
G01.358 Magnetic Phenomena 49
G01.358.500 Electromagnetic Phenomena 274
G01.358.500.505 Electromagnetic Radiation 32
G01.358.500.505.650 Light 828
G01.358.500.505.650.220 Blue Light
G01.358.500.505.650.440 Incandescence
G01.358.500.505.650.552 Infrared Rays 180
G01.358.500.505.650.665 Luminescence 231
G01.358.500.505.650.782 Photons 69
G01.358.500.505.650.809 Red Light
G01.358.500.505.650.836 Sunlight 489
G01.358.500.505.650.891 Ultraviolet Rays 1 027
G01.590 Optical Phenomena 38
G01.590.540 Light 828
G01.590.540.100 Blue Light
G01.590.540.199 Color 294
G01.590.540.233 Darkness 103
G01.590.540.333 Glare 16
G01.590.540.387 Green Light
G01.590.540.440 Incandescence
G01.590.540.552 Infrared Rays 180
G01.590.540.665 Luminescence 231
G01.590.540.782 Photons 69
G01.590.540.837 Red Light
G01.590.540.891 Ultraviolet Rays 1 027
G01.750 Radiation 226
G01.750.250 Electromagnetic Radiation 32
G01.750.250.650 Light 828
G01.750.250.650.220 Blue Light
G01.750.250.650.440 Incandescence
G01.750.250.650.552 Infrared Rays 180
G01.750.250.650.665 Luminescence 231
G01.750.250.650.782 Photons 69
G01.750.250.650.809 Red Light
G01.750.250.650.836 Sunlight 489
G01.750.250.650.891 Ultraviolet Rays 1 027
G01.750.770 Radiation, Nonionizing 55
G01.750.770.578 Light 828
G01.750.770.578.220 Blue Light
G01.750.770.578.440 Incandescence
G01.750.770.578.552 Infrared Rays 180
G01.750.770.578.665 Luminescence 231
G01.750.770.578.782 Photons 69
G01.750.770.578.809 Red Light
G01.750.770.578.836 Sunlight 489
G01.750.770.578.891 Ultraviolet Rays 1 027

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